05caddy

Hello. So I've owned my V for about 2 months now and I've noticed (more often when I first hit the road and it's cold) a slight whining from the diff that only occurs when I'm giving it gas. I've read to expect some noise just going down the highway from it, but is extra noise from accelerating to be expected? I had the car on a lift and inspected all the bushings, everything looks good and the diff bushing has been swapped with an aftermarket one(was solid all the way around). The driver's side CV seemed to have a little more play than the passenger's side, but not much. Should I be concerned? I saw a new 06 diff on ebay for 900, but I don't want to go buying a differential and then this one lasting another 60k miles.

DarkCharisma

Welcome to the family.


The rear diffs suck *****, and are either broken or breaking itself. #getraglyfe

You might get another 200k out of yours, but it will never be quiet.

isis

iTrader: (1)

Yeah the noise is typical especially under load. A new bushing will transmit the noise even more.

05caddy

Alright, well that's a relief! I'll just turn up the radio. Thank you

UnsafeAtAnySpd

Mine whines so loud I can hear it over open cutouts. Reason enough to get that 9" installed.

isis

iTrader: (1)

I have a 3" B&B and it doesn't drown it out even at full drone. (~1900 rpm in 6th gear)

Grenade19

I was really worried about this when I first bought mine but I've never had any issues and I don't hear anything. I had a 2000 Camaro that the rear end of the line after a couple of passes on nitrous and it definitely doesn't sound like this car is making that same noise. I would keep driving and if the noise gets worse then start to worry and look for a replacement IE creative steel

Vette Moto

Mine has a whine too. Most noticeable in 6th gear at 55-60 MPH under load. I just learn to ignore and it hasn't gotten worse or given me any problems yet.