LoLO

4.10's ! ... I can really feel the difference it's great but I have one concern..

It's making noise.. when i let the accelerator go.. the guy told me it was normal.. it needs to break in.. and also i feel too many vibrations in the car when I'm at 90mph.. what do you think?

howarmat

haha....."it needs to break in" and yet you are going 90+......

cmj

Exactly...

LoLO

he told me I can get on it as soon as I want it';s not the same " break in " as the engine its just a question of noise.. can someonewho knows what he's talking about help me ?

Black GT

How many miles were on your car when you had it installed?

Sounds kind of weird to me, the rear-end on news cars off the lot don't make noise and you don't need to break them in.

howarmat

I know what you are saying, i still would not go out and run like a bat out of hell with them is all. And I agree that you shouldnt have any added vibration. I would go back ASAP because there have been a couple stories about them not being done correctly and causing problems. Either way somethings not "normal"

hawgman

You can take this as another example of someone not knowing what they are talking about, but yes, you are supposed to break in new rear end gears. If "he" told you that you can get on it as soon as you want, then "he" doesn't know what he is talking about. You need to be kind of gentle with them for about 500 miles.

They will whine a little un decel until they are broke in. As for viberation, take it back. There should not be any viberation at all.

RUFDRAFT

+1

It takes some miles to break in the new gears.

My "whine" went away after a few hundred.