Last post on Dec 26, 2009 at 2:00 AM
You are in the GMC Safari & Chevy Astro
What is this discussion about?
Chevrolet, Chevrolet Astro, Van
#1 of 6 Rear End - Differential
Sep 12, 2007 (10:42 am)
I have a 2001 Chevy Astro 2wd w/ 55,300 miles
I recently had the rear end replaced due to a bad diff (as per mechanic). There was a constant noise coming from the rear when I accelerated. Now I'm getting a thumping sound from the rear when I release the brake after stopping. I've been back and forth w/ the mechanic as he does not seem to know what the problem is. First he thought and still thinks its the brakes not releasing properly. I think it may be a bad rear end from the salvage.
Can anyone provide guidance as it's getting riduculous going back and forth to the mechanic
#2 of 6 Re: Rear End - Differential [astrovette]
Sep 30, 2007 (3:48 pm)
having the same problem hoping someone can help
#3 of 6 Re: Rear End - Differential [tmcdougall]
Oct 01, 2007 (5:21 am)
Look under discussion title: GMC Safari/Chevy Astro #1636 for extensive feedback.
Hope this helps.
#4 of 6 Re: Rear End - Differential [astrovette]
Aug 23, 2009 (5:56 pm)
I believe I've got the same problem on my Safari 2002 AWD. One mechanic said that he thinks it has to do with a clutch-type plate in the rear differential which is slipping, creating a kind of thumping under acceleration and even deceleration. His solution is to open up the differential, replace the fluid and add a prescribed GMC additive that will reduce the problem although not completely solve it, at a cost of approximately $125. Apparently he had to do the same job on a RendezVous.
If there's another more accurate analysis of to this problem, I'd like to hear it.
By the way, how can I access the discussion #1636 mentioned in the # 3 box above?
#5 of 6 Re: Rear End - Differential [astrovette]
Sep 22, 2009 (12:32 pm)
Thanks for your reply to my question, but how do I get to #1636?
#6 of 6 Re: Rear End - Differential [astrovette]
Dec 26, 2009 (2:00 am)
i have an 01 astro i just bought it dose the same thing i had an 05 tahoe that did that and i took it in and they said it was the drive shaft that it needed to be repacked with grease so they did it and it stopped for a few months and stated again