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Re: Rear clunking sound with first snowstorm...



> Portland just got our first snow last night and a chance to really test out 
> the diff locks again..... I have an 87 4000QCS, after driving home (approx. 
> 20miles), upon slowing down I noticed a repeated mechanical clunking sound 
> from the rear of the car (differential?).  It would increase and decrease with 
Could be as simple as ice on the driveshafts somewhere.

Orin.