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#1
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70 12bolt bearings
Picked up a 70 12bolt and was wondering if anyone has all the bearing/race and seal numbers. I've tried to search around and only found the kits.
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http://www.fquick.com/garages/viewga...ewimg&id=74990 "You people have stood in my way long enough. I'm going to clown college." -Homer Simpson |
#2
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Front Pinion bearing M88048, race: M88010
Rear Pinion bearing (big one): M802048, race: M802011 Carrier bearing (2): LM603049, races: LM603012 C-clip axle bearings (2)... 5707 axle seals (2)...National 8660S Pinion Seal: I use Ratech 6109 pinion seal on 12bolts & occasionally order Ratech's side shims & solid pinion spacers. Locally avail National 8460N pinion seal can be used, but upon installation, you MUST make sure not to fully bottom out the pinion seal, instead, leave a little less than an 1/8" all the way around the flange of the seal & the nose of the housing, if not, the pinion seal will be too deep & the pinion seal area will leak. I've never used master installation kits with a bunch of thin carrier shims. Typically, for carrier installation, I use a proper thickness factory cast spacer on LH side (have a huge selection) & a GM service spacer & thin shim (or two) on passenger side of the carrier bearing race. Part number for the GM service spacers for 12 bolt car & truck carrier was discontinued (bought 40 of them years ago before disco'ed). Same diameter service spacer now has a GM part# under the 8.6 10 bolt truck application but cost is over 5 times the price of what I bought previous part under. Just another big Thank You to Gubbermint Motors & another reason my extended family doesnt support GM with vehicle purchases.
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Buzzards gotta eat... same as worms. Last edited by 'ol Pinion head; 10-01-2020 at 09:51 AM. |
#3
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Have made a spacer ring for the pinion seal. The one currently offered Is not for a car, its for a late 80's truck 12 bolt.
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#4
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Thank you very much for the info. Wanted to have new bearings ready for when I tear it down and clean up the housing.
__________________
http://www.fquick.com/garages/viewga...ewimg&id=74990 "You people have stood in my way long enough. I'm going to clown college." -Homer Simpson |
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