8.5 diff tear down and rebuild

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Matthew Jeschke

Matthew Jeschke

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swathdiver

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Couple more helpful links...

Two cut gears versus 5 cut gears:

http://www.demandaam.com/technical-support/aam-technical-tips/two-cut-vs-five-cut-ring-pinion-sets

Additional Torque Specs:

https://www.gm-trucks.com/forums/topic/63919-rear-end-torque-specs/

Preload and Backlash specs:

https://www.crawlpedia.com/ring_pinion_setup.htm

The link above is missing, side bearing pre-load and backlash variation. Anybody know what these are for GM 8.625 differential (or 8.5 differential)?

Not off-hand but you can get all of this from that All-Data subscription you won't sign up for! hehehe
 
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Matthew Jeschke

Matthew Jeschke

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Not off-hand but you can get all of this from that All-Data subscription you won't sign up for! hehehe
Love it thx... i am almost done with swapping in the temporary unit.. pardon my french but it is a butt ugly rusty mess.

Then as i have time i will rebuild the original one :)59c04ea6da6b7795b8d7a4ace687b14a.jpgb2a2ae91a227777ad34b6f66ba8d778b.jpg

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swathdiver

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Love it thx... i am almost done with swapping in the temporary unit.. pardon my french but it is a butt ugly rusty mess.

Then as i have time i will rebuild the original one :)59c04ea6da6b7795b8d7a4ace687b14a.jpgb2a2ae91a227777ad34b6f66ba8d778b.jpg

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You've done a tremendous job! Your donor truck couldn't have been more close in configuration either, that was a great match.
 
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Matthew Jeschke

Matthew Jeschke

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Just wish it had thr posi too :/

Curious, i dont have any red thread locker
.. just the blue, i need to put the pin back in on the diff and close it up so i can add fluid. But i dont want that housing pin to work its way out. Everybody says use red permanent lock.. i guess i have to make a special trip to buy the red thread lock :/
You've done a tremendous job! Your donor truck couldn't have been more close in configuration either, that was a great match.

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89Suburban

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Hey thanks, runs waaaaaaaaay quieter now lol i need to rebuild the posi tho and swap the original back in. Well first gind a few dollars tho. When i do i will post how i did it ;)

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How much $$ did the used axle set you back?
 

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