I have about 3000 miles on my 4.57 gears and they are starting to shake when taking turns on the gas. Does any one have the same prob.?

 

Before you do anything, I would take a good look at your installation of the diff from the outside! I mean your half shafts and drive shaft. Make sure all the bolts ars still there including the diff mounts forwards and rearwards!

 

Describe the shakes please...
And if they occur on or off throttle etc..

 

I have the 4.57's and the Comptech reinforced diff with about 2000 miles on them and I haven't experienced any problems yet. Just a slight gear whine at around 60 mph but not very noticeable at all. Good luck on your findings.


[I've edited your post to show the correction and will delete the next post. Have you tried to go back into your own post and edit out the mistake? (Does it not let you?)

Have read your latest post and deleted it as per your wishes. -- XV]

 

Could this be the infamous CV shakes? Does it occur under power when cornering right but not straight ahead or left?

 

I had an outer CV fail just after gear install. Don't know if it was related or not. Either way, it was a pain to diagnose.

 

Thanks to everyone trying to help me out. The shake is coming from the rear only when getting on a highway ramp, the long turn on the gas is when most of the shaking is going on. Very hard, quick, shake. Makes the rear view blurry.

AusS2000 Yes it is most on right turns, not at all straight ahead, some on left turns.
I have to get my CV's checked out.

So everyone knows my car is Comptech SC, And it does have the reinforced diff.

 

You'll need to do a bit of "Sherlock Holmes" on this one. It could be a CV, but it could also be a pinion shaft bearing (outer). This is possibly the next weakest link.

 

Assuming that the rear diff is fine. If the car is "shaking" when your acclerating.

- Did you put your rear wheels back on right, tighen the lug nuts? Kinda stupid thing to do, but it happens.

- It could be you didn't tq down the diff mount nuts/bolts

- lastly, check the 6 nuts/bolts on the prop shaft and the half shafts