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Whatever you decide, do the bearings. Even though the ones in there are relatively new, they may not be "happy" with the new R&P. The pinion bearing has to be pressed off, then back on with shims for the new gear. Guess what, it may not come off perfectly for the tech and there may be unintended damage, despite his best efforts to be careful, and the damage will not show up for a while. I suggest changing all of it. That said, call the shop at Randy's Ring & Pinion in Everett, WA and ask what they would charge for the same work, keep in mind the labor rate is half of the dealership rate, and that will give you a good baseline.
Oh but I will lol OK, a basic bearing kit & axle bearings & seals should cost no more than $180 for timken & national, As far as metal in the housing it could very well be so. There are common areas that will collect the debris and you must take extra care to get to these areas when cleaning it out. Being it has 2 new axles would lead me to believe that the old ones were bad and my guess left metal in the housing. New bearings sure can't hurt if that is the case. I would go down and ask them to show you the metal & where it was located. I know I don't charge anything extra to do bearings at the time of a gear change as far as labor goes. It only adds a few minutes to the job. They may be charging more for the cleaning time as well.
" The Resident Differential Guy, Have A Question? Just Ask! "
Last edited by JBimmolate; 17th-January-2013 at 02:55 PM.
This one is on Ebay by Summit. Go to Summit and look up your application.
I bought a complete kit about 6 months back from a seller on Ebay who does a lot of rearend parts. Mine was a Motive kit for my 8.5 and had Timken bearings in it as I asked specifically for them. I have the receipt at home I think, but at work now.
72 Nova 383(11.70s) Sold
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71 Nova 350 Sold
Bearing kit arrived, has axle seals Summit has a typo they need to address!
I will drop it off tomorrow at the shop, Reason I went with the dealership is I know the mechanic is fairly knowledgeable and don't trust any of the hillbilly 1 bay shops in my area. I don't live near a major city...
I plan to swap drums off my 7.5 to my 8.5, but wont until I do the swap as the 7.5 is under the car daily driving right now. Could I just buy new backing plates to bolt on to the 8.5 and install the axles to I could seal up the rear?
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