I need to change the seals, and service the rearend in my 70 GSX. I think someone told me there was a board member who knew where and how to get the correct parts, or maybe even had a supply. I assume I need both axle seals, a pinion seal, a crush sleeve and nut? Thanks in advance.
Everything is available except the crush sleeve,but that can be re-used. As far as bearings/seals go,nothing obsolete for the 1970 rear.
FYI. There are 2 different axle seals used on the 70, 8.2 rear axles. One is .375 thick, the other is .490 thick. The parts books and computers do not reflect this. Make sure to measure your original seals before installing the seals and bearings. The thicker one is listed for the 71 and newer 8.5 axles. National 2146 is .375, National 712146 is .490. The bearing is the same National A-9.
Inner pinion bearing/race = M804049/M804010 Outer pinion bearing/race = M86649/M86610 Pinion seal = 8620,or some older numbers like 47392 LH carrier bearing/race = SET36 RH carrier bearing/race = LM501349/LM501314 Axle bearing = SET9 or A9 Axle seal = 712146
Nice info! Someone needs to post a sticky that lists part numbers of bearings/seals for the various Buick years/rearends, so that people won't have to search through old posts for it. And what's still available easily and what's harder to find. These posts keep popping up with the same questions.
My web Site has had these part number for 15 PLUS years...lol. JD Race and Restoration http://www.jdrace.com/ DIFFERENTIAL ID (RECTANGULAR BUTTON ON THE LEFT) http://www.jdrace.com/content/diff_id/10bBOP_Buick.php http://www.jdrace.com/content/diff_id/10bBOP_Buick.php
