06 Torrent, Rear Diff Issue

[Sliver]

Afternoon all..

I have a 2006 Pontiac Torrent, AWD, 3.4L, 285000Kms

My issue is, when the AWD kicks in, the rear end makes one hell of a grinding/clunking type noise. It is almost as if there is a Sprag Clutch or an over running clutch that is constantly slipping and gripping under mid to heavy acceleration/load in the snow and ice. Under normal driving conditions there is no noise.

I'm just wondering, if anyone has had a rear end apart, is there a drum clutch or set of frictions discs and plates in the diff that go bad and chatter when engaged? I picked up some Versatrak and was going to change the fluid and have a look at the oil for any types of deposits in it. Even at my cost, the Versatrak stuff is dear! (I am a Farm Equipment Mechanic)

Any insight would be great!

Thanks,
Sliver

 

[melsg5]

well since you havent checked the fluid level yet, you may be low, I would go with the fluid change first especially at that mileage. Hopefully the diagrams on this link will help you determining the type you are working with.

http://parts.nalleygmc.com/productS...e=0&isAccessory=0&isPerformance=0&searchTerm=

 

[Sliver]

Thanks for the reply, and a parts breakdown. Looks like it runs a dear enough drum clutch in the rear diff. If a simple fluid change doesn't fix it at this high mileage, oh well?!? Lol

Sliver

 

[4wheeler]

I have the same problem with my 2006 Pontiac Torrent when the all-wheel drive kicks and it makes one heck of a noise in the rear did you figure out what yours was

______________________________

 

[melsg5]

The OP hasn't posted to this site in over 5 years

 

[4wheeler]

So has anybody else have this problem and figured it out

 

[melsg5]

What has been done so far?
Fluid level checked?
U-joints checked?

 

[4wheeler]

Fluids all good u joints all good shop said nothing wrong

______________________________

 

[melsg5]

Did the shop drive the vehicle and experience the problem?

 

[4wheeler]

No I do all the work on my vehicles but it being winter I'm not laying on the ground and in the snow I don't have a garage so I took it in and have them checked all the fluids
did not driving or anything no they just told me everything is full and everything is fine so I was just kind of wondering if people had problems with these and what they were so I can get the parts and work on it and when it comes warmer out

 

[melsg5]

Have you considered getting a rebuilt unit so you don't have to guess what parts you will need?

 

[4wheeler]

Have you considered getting a rebuilt unit so you don't have to guess what parts you will need?

So it's a common problem or I was thinking a used one but a common problem I will rebuild mind then thanks for the help

______________________________