Vibration after 2inch raise

Hi Jack,

I would of also said the prop shaft angle, is much more of the spline showing on the shaft after the lift ?
Perhaps there is more play on the end of the spline where it slides in and out of the shaft for suspension travel.

Good Luck

Maybe they didnt mark the tail shaft prior to dismantling it and whacked it back together, although I dont see why they should have to remove the shaft in the first place for a 2 inch lift. You could be on the right track in regards to angle although I dont have one in mine but mine is a sh@t load older.This is a very common lift in a hilux and havnt heard of other people having the problem and guess what Toyota wont want to know about it as it has been modified. !!! specially if related to suspension. Regards Steve M

Hi Jack,
Cant for the life of me understand why they would have told you to get Toyota to fix it..? From what i read mate, ARB did the lift right ? So why would they tell you Toyota should look at it. If ARB did the lift, then they would be responsible for the vibration wouldnt they? You pay top dollar to have ARB do mods to 4wd's and that extra payment should cover problems like you are having now. Thats why they are so good at what they do, they know whats required to do it right, if you had a problem before hand they would have checked before the job was started and advised you that there was a problem which needed fixing before they do the job....it dont make sense.
Ange.

Each time I start off in first gear and low speed second gear (H) I have a vibration through transmition

At what RPM will it start to vibrate and will it still Vibrate at a higher speed at the same RPM> If so it could be a balance issue.

Dose it do it on acceleration and deceleration as well if so possible Uni-Joint problem

Personally I would be sceptical about how much ARB Know when it comes to actual mechanical chit, I would go straight to Tojo then if it’s a ARB caused problem tell them to fix it.

I have heard of similar after big lifts the fix i believe was to drop the rear gearbox mount about 20 mm to give a better drive shaft angle it has something to do with the universal joint ??
Hope this helps Kev

Bushpig,
I have had this problem before with hilux's, the rear is probably higher than 2" lift usually because they put the extra heavy duty springs in a vehicle that does'nt require them.
The answer is to shim the rear diff with caster wedges to point the nose of the diff up a little trial and error involved.
No comment on your ARB store!!

couple of articles for your perusal throws a bit more light on the subject of drive line angles

Site Link

Site Link

hope this helps

Tex

Hi all
Thanks for all the info. I will see what ARB says then if not happy I will go to Toyota for exact measuments etc then get ARB to fix it. I will keep you informed as to the outcome.

Thanks to all

Jack

I think youll find its a shocker problem. If it was the tail shaft (angles, or out of ballance) it would happen at any speed. I had the same problem after lifting my 89 Hi-lux. The axle housing was trying to rotate with the top leaf's of the springs until hit the over-ride leaf spring on the bottom causing a shudder. Try loading up the rear so that the springs are laying flat, ie: all the springs compressed and then try.
I changed everything to fix it, New carrier bearing, 2 piece tail shaft to 1 piece, checked angles and even had someone leaning out of the ute looking underneath as I drove off to try to see where it was coming from only to find in the end the shockers were not up to standard.

I did my own 3" "spring-over" lift on my Rocsta (same setup as Hil;ux) so,when vibes set in,made up simple wedges to put between spring and avle housing to get some rotation up-wards at shaft entry to diff.Cost nix..Wks fine (drill hole for centre bolt) Helps? (Of course,they should have done it..Must have been a Friday job)..Have Fun..RockyOne!MPG:6!