Aluminum Differential Cover Thermal Results
I recently installed a finned aluminum differential cover from PML Covers on my 2012 Chevrolet Avalanche 1500 that I intend to use for towing a travel trailer. In my previous truck, I had to replace ...
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PDX.Zs wrote:Blacklane wrote:
r, but I had to replace the 4 differential bearings and 2 rear wheel bearings at around 160,000 miles. All of them had severe pitting.
Wow!
I know that is not the most robust axle in the world, but that is basically unheard of.
My (educated) guess is that there is something more than heat or towing going on here. Perhaps a bent shaft, bent housing (less likely) or a bad install.
Either way, the diff cover looks nice. :-)
These are some of the bearings from the differential in my old Chevy truck. I don't think excess heat had anything to do with this failure, however I suspect that tiny metal flakes from a single failing bearing slowly destroyed the other bearings. I think that if I had changed the fluid regularly, the problem might not have cascaded into destroying all of the bearings. That's the main reason I replaced the differential cover.
