Ve axle tramp 2011

[JJW501]

VE AXLE TRAMP 2011

OK I have bad axle tramp in me 2009.5 VE ute. I don't do burnouts or go to the drags, it just irritates me when I go to take off in the rain and with the slightest slip it tramps.

I have experimented with flooring it and 9 times out of 10 it tramps violently.

I have read here about coilovers, bush kits, control arms, different sized axles, tyres......the list goes on and I haven't found any hard evidence that one particular thing fixes the tramp.

Does anyone have a proven fix?

Don't tell me to get new tyres......it has done it since new and even if new tyres did fix I am not going to replace them every 3000kms.

Other people have a bush kit that works for a few weeks and then the tramp is back.

I see in the states they are selling different axles. Anyone here have the kit and have a review?

All help appreciated.

JJW

[fastestls7]

try taking of under 5000 rpm? seriously cant say that you cant take off at any speed without spining the wheels and axle tramp. unlesss you hace aceramic button clutch?

[JJW501]

I think you miss read my post.......Even when I take off steady, clutch all the way out, turning in the wet from T-intersection, you can't get this thing to drive forward without slight spin sometimes, but this leads to big tramp.

I have read on here that some people reckon it doesn't do it if you floor it, hence why I tried it as an experiement, but that is not the case with my vehicle. Again, I don't drive around sideways everywhere.

I also drive on dirt roads/farms and a little wheel spin is inevitable. I'm not talking about the rear wheels spinning 100kmh faster than what you are driving at.

Whether you want to nit pick my post and driving or not, I am looking for USEFUL information regarding fixing tramp on VE's. Simple.

This is the only vehicle that I have ever owned that does it. It is really p'ing me off! Ute has some simple mods, nothing extreme. It tramped before the mods anyway.

JJW

[ssv402]

In all seriousness, replacing all of the standard suspension bushings to polyurethane bushings fixed it in my old ve, but it rode very hard as a consequence as it was lowered too. The diff mounts were also replaced.
The lowering with pedders sports ryder shocks and springs could have been what fixed it also... So theres three things that i know were related to my issues of axle tramp.

[Knawful]

You must have one of them there freak motor, or a cop chip.

Mine only does it when i mash the loud pedal.

As far as i can gather it's a rear end geometry issue., not an easy fix. (?)

[Wonky]

I know of someone very knowledgeable who has been working on this for over a year and has the answer. He has had some expensive axles made up at his own cost but yesterday in EXCESSV's My Ride thread Dean made reference to a readily available solution. http://www.shop.gforce1320.com/product.sc?productId=87&categoryId=23

I have no idea as to how well they work but that's the apparent correct approach.

[Djbarnstar]

I know of someone very knowledgeable who has been working on this for over a year and has the answer. He has had some expensive axles made up at his own cost but yesterday in EXCESSV's My Ride thread Dean made reference to a readily available solution. http://www.shop.gforce1320.com/product.sc?productId=87&categoryId=23

I have no idea as to how well they work but that's the apparent correct approach.

Yep thanks to Excessv! This is going into my car and we will see if it works.

This is what my tramp is like at its worst....:bawl:

YouTube - Axel tramp



(My car is set up for the circuit however)

[JJW501]

OK thats great to hear some positive feedback regarding the GForce axles.

Seems a lot cheaper than coilovers etc.

Any idea on labour cost to install the GForce axle kit???

JJW

[Djbarnstar]

In all seriousness, replacing all of the standard suspension bushings to polyurethane bushings fixed it in my old ve, but it rode very hard as a consequence as it was lowered too. The diff mounts were also replaced.
The lowering with pedders sports ryder shocks and springs could have been what fixed it also... So theres three things that i know were related to my issues of axle tramp.

I have tried:
- Bushes (was told it would fix 90% of tramp... what a load of crap)
- Tru track
- Teins (different heights and different rebound settings)

Still get tramp.

Going to try the G force set up. I figure it will be about a grand installed.

[Steve-LS2]

Yep thanks to Excessv! This is going into my car and we will see if it works.

This is what my tramp is like at its worst....:bawl:

YouTube - Axel tramp (http://www.youtube.com/watch?v=fOQO_SsX49Q)



(My car is set up for the circuit however)

Please keep us posted as mine has had shocking Axle tramp under ANY traction loss since new.

Has only had 1 set of tyres, never lowered either.

Be very interested to see.

[dimmo]

The factory Holden diff bushes are not a complete bush. They have far to much room for allowing the diff to rock forward and backwards hence creating axle tramp. SuperPro makes and awesome bush for the diff. It will help with tramp but there is no magic cure. And as for experience I have tried this on several cars and it has been a vast improvement. I'll try get some pics up tonight.

[JJW501]

The factory Holden diff bushes are not a complete bush. They have far to much room for allowing the diff to rock forward and backwards hence creating axle tramp. SuperPro makes and awesome bush for the diff. It will help with tramp but there is no magic cure. And as for experience I have tried this on several cars and it has been a vast improvement. I'll try get some pics up tonight.

Hey Dimmo thanks for the input.........I thought that this was a proven mod on the VT-VZ series but not so successful for the VE's????

[2ajmanvell82]

Both Me and my Father and mate have VE's, We all suffered from axle tramp, slow in the wet is the worst, or if your wheels are spinning hard/fast and then as the start to pick up traction.

What brand of bushings are people getting fitted to their cradles? I have seen the Nolathane kit fitted and not help alot and when u have the kit side by side with the superpro kit, it is half the bushings and not as dense a bush, although would have to be better than standard.

In my Maloo I had superpro cradle bushings fitted and HSD coilovers, normal height-slammed 18" wheels & semi-slicks-20 & 22" street wheels/tyres, bolt on only to various supercharger setups and outputs-220rwkw-410rwkw and never ever got 1 bit of signs of tramp.

My Fathers is just a VE SS with SSL and my HSV shocks which helped ride but it still tramps, bushings next mod.
My mates Maloo, SSSL's and lowered Monroe shocks and bushings, tramp all fixed also.

I have recently bought the E2 Clubsport and it has SSSL's and 22's on it, havn't had any trouble with slow wet tramp yet but it lightly tramps when spinning wheels and shifts 1-2-3 being A6 and shifting firm, so just looking at getting the bushings done again to see how they go and also wanting to fit pedders XA's when possible.

The bushings have to help to some degree no matter what when u see the size and the amount of flex, if I put my car in D and R with brakes on u can watch how far the wheel moves just on the stall load at idle and a little accel, they move around alot!!!

Also had the front bush fitted as the front wheel flex's back so far also.

The geometry of it all doesn't help the way all the forces work but bushings & shock control-bump & rebound have to do alot of the help of reduction to tramp, especially at low friction wet condition tramp, for those it's not completly helping such as those on the strip as there is a high grip situation, and if you are spinning the wheels and trying to get a car moving is going to flex everything the most, hopefully the axle set can really make the last thing needed.

having good bushes in the suspension what ever way u go about it is always going to be a good thing taking excess movement/flex.

Goodluck, hopefully u can get it 100%

[Ripcell]

i dont know much about the rear of the VE, however ive got the Harrop sport diff cover on my vz ute, it bolts up to the rear frame quite hard, it helps the tramp a bit however ive found (i think anyway) that the rear tyres seem to contribute to it a fair bit, i had some hero things on it when i bought it and it tramped a fair bit, its got better tyres on it now and i found it helped a lot.

that are the diff mounts like on the ve?

[big_block_hg]

My axle tramp is severe and slowly driving me insane. It's ruining what is an otherwise great car.

Tried urethane cradle bushes - still tramps.
Tried coil-overs - still tramps.

Fitting urethane diff bushes now, will see if they make any difference (I'm not confident).

I'm determined to get to the bottom of this once & for all by making one change at a time until it's gone.

Next step will be the BMR Trailing arms.

I'm very curious to find out how you go with the G-Force axles Djbarnstar as I've been warned by others on here not to waste my money as they are not a 100% fix.

[smokey777]

I have a ve ss ute cammed 305 rwkw and i never get wheelspin unless i want it wet or dry! But on the 2 occasions i have smoked it one tramped a bit other didnt. Its bog susension other then slightly lowered.

[big_block_hg]

The only thing I can say for sure is that when spinning the wheels, the closer the tyre speed is to road speed, the more pronounced the tramp is.

[BLACKVE]

My VE SS sedan tramped like a bitch standard height lowered cammed didn't change a thing bent tailshaft bolts etc

O8 SS ute and no probs at all:confused: standard lowered cammed head/cammed never tramped at all:confused:

[Plenty]

I installed a harrop diff cover on mine, fixed it completely!

[dimmo]

Guys I recommend you start realizing what your all suggesting here.
Coilovers? Get ready for a bumpy ride
BMR trailing arms? I sense wheel alignment problems
Axles? Only of they are rooted and have heaps of backlash

Start simple, this is just advice so don't get up me.

The factory Holden bushes are a soft rubber type, with a small section of the cross sectional area not filled. This is to allow for suspension movement. So that mr and mrs smith can drive the kids to school or on a family trip in there omega v6 and have a smooth ride. Unfortunately all models get the same bushes, thanks to mass production so sun you start adding power and aggressive driving style into the equation you can begin to see the suspension wasn't designed to do these sort of things.

I have driven many ve's after they have been register and have done a handful of the diff bushes. I can say with experience it is a worthwhile upgrade it makes the car feel alot more agile. It will affect ride but nowhere near as much as suggested ideas. Because after the novelty of stiff coilovers and insane offset suspension wears off just remember your gonna have to live with it.

Regards, Dimmo

[Ripcell]

I installed a harrop diff cover on mine, fixed it completely!

great arent they, mine still tramps slightly, maybe 10% of what it used to :bow:

[Wonky]

From what I've heard the Camaros suffer very little of no axle tramp because they do have different diameter axles to eliminate/reduce the harmonics that build up with equal sized axles and perpetuate axle tramp. The guy I mentioned earlier who has researched this and had his own axles made up to his specs (very knowledgeable guy) has totally eliminated axle tramp in the dry and significantly reduced it in the wet so far and when he has funds will have another set made up in the hope of perfection (or close to).

[vxss5.7]

if there new ute y dnt u take back to deal WARRANTY!

[O.N.]

From what I've heard the Camaros suffer very little of no axle tramp because they do have different diameter axles to eliminate/reduce the harmonics that build up with equal sized axles and perpetuate axle tramp. The guy I mentioned earlier who has researched this and had his own axles made up to his specs (very knowledgeable guy) has totally eliminated axle tramp in the dry and significantly reduced it in the wet so far and when he has funds will have another set made up in the hope of perfection (or close to).

HSV GTO coupes and the pontiac GTO coupe are suppose to suffer badly, mine is ok, but as you say it is in the harmonics running a larger driveshaft on 1 side will break up the harmonics and this is just what gforce1320 sells anti wheel hop axle kits and it is just that a large size and a small size with the larger also being a little heavier, completly changes the harmonics of it, i spoke to cris from gforce about this he said he had a guy that had such bad wheel hop it could pop his radiator mount off, after going the the big little axles gone 100%. seems to make sense to me its all harmonics, so break it up with having a heavier bigger axle on one side.

[Wonky]

if there new ute y dnt u take back to deal WARRANTY!

They would have NFI...........

[Blown 540]

They would have NFI...........

Hahaha , shit mister holden dealer i suffer from axle tramp , guns and roses.

Dunno mate i have 1100 rwhp in a VE and i can take off like a normal car.

It also has complete pedders makeover, the only thing it still has which is stock is axles, i have zero axle bounce .

They say that hp can solve it , i dont subscribe to that theory , it had no bounce with 650 rwhp.

[smokey777]

They would have NFI...........

as it should be :)

[Martin_D]

As far as i can gather it's a rear end geometry issue., not an easy fix. (?)

This man knows! :)
It has to do with the geometry of the top link I believe. No amount of polyurethane will make any difference.

[Martin_D]

Note: We get some way into drawing and engineering replacement arms for the VE to totally and correctly eliminate tramp back in 2007, however its became non-viable on a cost versus projected sales basis. Fixing the problem properly entails some reasonable expense, with the prospect of little return; hence it was shelved.

[JJW501]

I installed a harrop diff cover on mine, fixed it completely!

Is this available for a VE?

[Popeye1]

I know you revering to the ve but my vz ute auto di it slightly an was aliminated whe Sam instaled a harrop diff hat.

[Martin_D]

Diff covers do nothing for axle tramp other than placebo. Thats not where the problem is
Certainly not revering or aliminated style :eek:

[Plenty]

Diff covers do nothing for axle tramp other than placebo. Thats not where the problem is
Certainly not revering or aliminated style :eek:

Don't mean to undermine you and you far better knowledge than my own, but it did help and pretty much fixed it. :)

[Evman]

Regarding the different dia. driveshafts. There's been rave reviews from blokes in the US with GTO's using GForce's kits. Some have claimed it fixed the tramp completely, most say it dramatically reduced it to the point that it was now hardly a worry, and very few have said it did nothing at all. If anyone here in Oz is going to try them be sure to post up because I am very interested in the results. After trying all of the other "fixes" bar the Harrop diff cover but still suffering major tramp, I am extremely sceptical, but somewhat optimistic still.

[Martin_D]

Don't mean to undermine you and you far better knowledge than my own, but it did help and pretty much fixed it. :)

Fair enough, but the two parts/issues arent related.
Fixing axle tramp by changing the diff cover makes about as much sense as fixing a flat tyre by changing the fan belt :)

[Plenty]

Fair enough, but the two parts/issues arent related.
Fixing axle tramp by changing the diff cover makes about as much sense as fixing a flat tyre by changing the fan belt :)

:confused: maybe the cause or what i was hearing and feeling was different?
apparently the extra mountings are what helps to fix it.

[Wonky]

Fixing axle tramp by changing the diff cover makes about as much sense as fixing a flat tyre by changing the fan belt :)

So that's where I went wrong............. :doh:

[JJW501]

GForce axles ordered.

I guess it will be about 6 weeks before I have them installed.

JJW

[pah]

Hi Guys,

This problem appeared in my FG XR6T with around 20k on the clock. Ford must have identified the problem because they're fitting stronger raer end bushes.

Patrick at Wholesale Suspensions in Penrith fitted Superpro bushes and that's cured the axle tramp issues. They fitted what's known as the "comfort: bushes. They not as good as the Ford rubber bushes when it comes to NVH supression but they are not too bad.



PAH

[Evman]

GForce axles ordered.

I guess it will be about 6 weeks before I have them installed.

JJW

Why so long? Did you order form the states or is it just because you wont have the time to fit them earlier? I ask because there are Oz distributors. If they have stock or not is another thing :lol:

[JJW501]

Why so long? Did you order form the states or is it just because you wont have the time to fit them earlier? I ask because there are Oz distributors. If they have stock or not is another thing :lol:

Evman,

First off I did not see any Aussie sellers, so yes, they are coming from the US.

Secondly, you know they would be double the price if retailed here.

And last reason I will be waiting.....shipping seems to have increased in price recently. FedEx wanted $400 to ship it within 5 days. I ended up with USPS priority which will take a few weeks.......then I have to get around to the fitting.

Its not a big deal in my mind. I intend to keep the ute for a few years so slow and steady does it

JJW

[Popeye1]

Wel Mr Harrop must have had my diff cover blessed by the pope because when Sams perfomance installed it 4 years ago ive done burnout comps powerskids at powercruise run the 1/4 at WSID frequent and never a tramp regardless of tyre presure! I love to se how my ute would improve if i went to confesion.

[JJW501]

Wel Mr Harrop must have had my diff cover blessed by the pope because when Sams perfomance installed it 4 years ago ive done burnout comps powerskids at powercruise run the 1/4 at WSID frequent and never a tramp regardless of tyre presure! I love to se how my ute would improve if i went to confesion.

Is this on a VE?????

[JJW501]

UPDATE!!!

I can only say it has been frustrating dealing with GForce engineering, but my axles have just arrived and I am still focused on fixing the tramp.

Hoping to get them installed next week.

Fingers crossed!

JJW

[vessls3]

Hahaha , shit mister holden dealer i suffer from axle tramp , guns and roses.

Dunno mate i have 1100 rwhp in a VE and i can take off like a normal car.

It also has complete pedders makeover, the only thing it still has which is stock is axles, i have zero axle bounce .

They say that hp can solve it , i dont subscribe to that theory , it had no bounce with 650 rwhp.

he has the right idea just over power the car problem solved lol i had a cammed ls3 in mine with 355rwkw and it never axle tramped thus the theory stand over power it :)

[Evman]

Really, really looking forward to the results :)

[JJW501]

Really, really looking forward to the results :)

Not long now, I dropped it at the workshop this morning!

[JJW501]

Got the ute back with the GForce axle kit (both sides) installed.

Haven't had much of a chance to test it out since it is dry and I don't drive around doing burnouts, but an experimental rolling boot in 1st gear delivered noticably improved traction. Previously the ute would shake itself to bits at the slightest hint of wheelspin, seems to drive forward much better already.

I guess I need it to rain to see if I can notice a significant improvement.

The other thing is wheelspin on wet grass - I really could not do that in the past so we will see if its improved over the weekend on the farm. Lets face it, its a bit shameful having a ute that can't do a donut in a paddock!!!

Just for those of you that are curious, ute has stock driveline, suspension and wheels/tyres. The tramp has been evident since I bought it with new or worn tyres.

It was hard to drive in the wet as it would constantly struggle to get traction even at partial throttle and shake violently.

JJW

[Tuned_LS1]

Just should of loaded it up with some bricks!

A lot cheaper! lol

[JJW501]

Just should of loaded it up with some bricks!

A lot cheaper! lol

Clutches are cheap????

Happy with axles thanks!

[Tuned_LS1]

Clutches are cheap????

Happy with axles thanks!

haha, then its a never ending battle then!

But hopefully you have resolved your issue

[JJW501]

OK so I have done some more testing and I think that the axle tramp is by no means eliminated but it has improved by at least 50%.

First of all, the ute is not breaking traction as easily. When it does, the chance of getting tramp is about 50/50. The big advantage though is that if the tramp does occur, it is no where near as violent as it was before.

I would like to think that I am mechanically sympathetic and there was no way you could power through the tramp before, but now the tramp is smoother and definitely at a different frequency.

Overall I rate this mod about 8/10.

I have a set of BMR trailing arms on the shelf which I intend to install next.

So far I think that there are several problems that contribute to the axle tramp and it may take a few mods to eliminate it.

I understand how some people say that more power helps, as the tramp is worst when wheel speed is only slightly higher than road speed, but this is what I tend to experience when driving as I am usually not intending to get wheelspin, which is why it gives me the $hits.

JJW

[Evman]

Excellent to hear that it does improve it. The gist I got from reading the US forums is that the majority saw an excellent improvement but still got the odd tramp, some had it fixed completely, and very few saw no improvement at all. People always say that tramp is caused when the wheels are gripping then letting go repeatedly, which by all accounts can cause it. However that doesn't account for the tramp in severe wet conditions and such when there just isn't any traction to be had. There are obviously underlying issues that can be addressed.

[big_block_hg]

Update.....

Tried urethane cradle bushes - still tramps.
Tried coil-overs - still tramps.
Tried Urethane Diff Mounting bushes - very slightly reduced tramp, definitely changed tramp to a different (faster) frequency - still tramps

[JJW501]

BMR trailing arms fitted today.

I am thinking again maybe a slight improvement but need to test properly over the weekend.

JJW

[ADAM 26]

mine has the odd bit of tramp, i find if i nail it and pick second gear it will go away and just skate up the road. im waiting for the day a drive shaft lets go.

[nikola]

Shame, it looks like there is no real fix for axle tramp on the VE and there never will be.

I'm the same as most people here, has tramped since day one. I even had a fuel pump go faulty (under warranty) and I wonder if it was caused by all the shaking that happens back there when I spin the wheels. It annoys me so much that I'm honestly thinking of selling.

[JJW501]

Shame, it looks like there is no real fix for axle tramp on the VE and there never will be.

I'm the same as most people here, has tramped since day one. I even had a fuel pump go faulty (under warranty) and I wonder if it was caused by all the shaking that happens back there when I spin the wheels. It annoys me so much that I'm honestly thinking of selling.

This is where I am at. I just like things to perform, even if I am not racing or being a hoon, I just like to know that my bikes/cars are setup and reliable.

I have never come across this before. It amazes me how we had $200 VW paddock bashers that ddn't tramp, and my billion dollar baby has a major flaw. I guess this is where CAD lets you down, there is no replacement for good old fashioned R&D where the engineers acutally act to fix fundamental problems.

JJW

[Drizt]

Anyone have any further input on this?

My car axel tramps pretty easily (most severe in the wet). Can reproduce it when flooring it even in the dry.

I did a search but looks like this is the most recent thread.

[skilly]

After trying crossmember and diff bush inserts in my VZ ute new shocks is what completely cured it.

[blackvussii]

My vu did it real bad wet and dry, when I had my trutrac and 3.9s installed had the diff mount/ cradle/ crossmember bushes replaced with pedders gear and improved it out of sight.
Still does it a bit in the wet but hardly ever in the dry. Grips and feels a lot better, shocks were replaced not long before. (sl springs)

[JJW501]

The VE has its own setup and mods to other models do not apply.

I don't think that there isn't a cure.

I have managed to reduce it significantly but it is still there, especially in the wet when there is no drive. On track it is fine wet and dry, no tramp at all.

JJW

[Drizt]

Pity there is no real fix for this. It is pretty damn annoying.

Thanks for the replies guys.

[team illucid]

VE senator has no axle tramp issues .. neither does our R8 wagon, so whatever HSV have done seems decent enough. The torana is a bitch for it though.

[Drizt]

The VE has its own setup and mods to other models do not apply.

I don't think that there isn't a cure.

I have managed to reduce it significantly but it is still there, especially in the wet when there is no drive. On track it is fine wet and dry, no tramp at all.

JJW

JJW,

Do you think the BMR mods below are worthwhile? Would you do them again? Do they negatively impact ride quality?

BK002 - Bushing Kit, Rear Cradle, Polyurethane, Street Version
http://www.bmrsuspension.com/?page=p...&productid=485 (http://www.bmrsuspension.com/?page=products&productid=485)


TCA033 - Trailing Arms, Rear, Single Adjustable, Rod Ends
http://www.bmrsuspension.com/?page=p...productid=1042 (http://www.bmrsuspension.com/?page=products&productid=1042)

[JJW501]

JJW,

Do you think the BMR mods below are worthwhile? Would you do them again? Do they negatively impact ride quality?

BK002 - Bushing Kit, Rear Cradle, Polyurethane, Street Version
http://www.bmrsuspension.com/?page=p...&productid=485 (http://www.bmrsuspension.com/?page=products&productid=485)


TCA033 - Trailing Arms, Rear, Single Adjustable, Rod Ends
http://www.bmrsuspension.com/?page=p...productid=1042 (http://www.bmrsuspension.com/?page=products&productid=1042)

There is no doubt that the stiff bushes have a big impact on noise and make bumps go right through the car. I have nolathane bushes in all but the diff mount. First time I drove it after having the bushes fitted I nearly cried........I felt EVERY bump in the road, felt every reflector I drove over. I do not recommend these bushes if you have any intention of daily driver.

Right now I am in a position of being too stiff on the road and still too soft for the track! I attempted to keep the bushes tight and run monroes GT which are not super stiff, thinking they would provide enough compliance however I soon learnt how much the bushes impact comfort (a lot). Also, driving on dirt roads now is out of the question - ute will shake itself to bits over about 15kmh on corrugations. It is not something I can drive through - going faster does not help!

My bushes have now done about 60,000 and are worn out, so although they have loosened up and are not as harsh, they are squeaky and noisy. It is not a modification I recommend.

If I was going to go again from scratch, I would probably do sway bars F + R, then diff bushes to take out the drivetrain lash (although I do not have them, I have driven a car with them - I just haven't got around to it yet), and go for stiffer shocks+springs with the stock rubber bushes.

NOW - the control arms: They have virtually no impact on ride quality at all. They come with a nolathane bush, however I did not notice any adverse effect on noise or bump transmission.

My ute is at a point where I have great fun doing track days, but I am very certain that it will never be a fast car. It is a big, heavy, cheap chunk of fun. It will never be a good track car. But it is fun sideways in 3rd, and as fast as it may be I can't do that in my mate's $180K Lotus Evora. It does have near zero body roll and excellent bump absorption/comfort though. BMW 335 is an impressive chassis too, but could use a little more power. Spend some time driving better quality cars and you soon realise the commodore has more than a few design flaws. I reckon the modification money I have spent would cover a nicer car anyway. I need the ute for other reasons, but next car will be more track ready in standard trim and will keep ute for the sake of having a V8.

So in all seriousness, don't do the bushes. You will hate them, unless this is a 'toy' car that you don't drive every day. The BMR arms did help tramp. So did the rear cradle bushes. I have actually moved house now and that crappy bit of road that induced the tramp - I don't drive it anymore!

I would actually like to try the BMR chassis brace but they don't make it for utes.........

The bushes - there needs to be something between soft rubber and Nolathane. Seems to be a choice of extremes.

JJW

[Xjas]

As far as the VE is concerend there may be some truth to the more power fixes tramp theory, or more the the point lossing power creates tramp.
I have never really worried about axle tramp as its always been quite minimal with my normal driving however on a a recent trip to the drags, my first in my VE M6, I was getting terrible axle tramp when gave it a small blip to clear the water off the tyres after driving through the water box, I data logged every run and found that each time when it was tramping the ECU was pulling a heap of timing, TC wasn't on and no other spark tables were affecting the timing, I think I have traced it back to the M6 spark smoothing parameter. What I think was happening was when the tyres start to slip in the water the engine picks up in revs so quickly that the ECU mistakes it for what ever spark smoothing is supposed to fix and pulls a bunch of timing to try and slow the rate of accerleration of the engine, pulling a heap of timing drops the power to the wheels and they suddenly have grip again which seems to be the key ingredient to starting axle tramp.

In my old holden ute I had a welded centre 12 bolt, 3.55 ratio sailsbury for many years with no axle tramp at all, had a diff place do a 9 inch conversion with a detroit locker centre, still a 3.55 ratio, no other changes to the ute and the tramp was so voilent the cd player would skip when it was tramping, the tramp was even bad enough to shatter a Mark Williams 4340 axle. Was never able to fix the issue, the only two causes I could think of the extra weight of the 9 inch was causing it or the diff place had gotten the pinion angle screwed up.