The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 1963 12 bolt spider gears cupped (Thrust) washer?

Agv63 · 01-20-2024, 01:07 AM

I experienced the same discovery as you do now. I got spiders and thrust washers from another diff, so that i can go with 5x5 axle shafts i bought. When i opened rear i also saw no washers, installed washers and the other gears dont go in, so i took washers out and assemble , drove it some time now and no issues .
The 63 diff is just an oddball, had issues with seals for wheel bearing being 0.040" smaller on od .
Here in south africa its really a hunt finding imperial size seals, i ended up buying metric seals and shorten the inner spring to seat id on shaft, all good so far.

Cheers.
Adriaan.

01-20-2024, 01:07 AM	#2
Agv63 Registered User Join Date: Jan 2023 Location: Johannesburg South africa. Posts: 64	Re: 1963 12 bolt spider gears cupped (Thrust) washer? I experienced the same discovery as you do now. I got spiders and thrust washers from another diff, so that i can go with 5x5 axle shafts i bought. When i opened rear i also saw no washers, installed washers and the other gears dont go in, so i took washers out and assemble , drove it some time now and no issues . The 63 diff is just an oddball, had issues with seals for wheel bearing being 0.040" smaller on od . Here in south africa its really a hunt finding imperial size seals, i ended up buying metric seals and shorten the inner spring to seat id on shaft, all good so far. Cheers. Adriaan.