Search found 3 matches

by Classics65
Tue Mar 13, 2018 5:23 pm
Forum: 12 Bolt Differential Questions
Topic: 65 rear axle question
Replies: 5
Views: 3546

Re: 65 rear axle question

Forgot to ask, but how much fluid does this rear end hold and how often should it be changed?

Thanks, Zach
by Classics65
Mon Apr 17, 2017 8:15 am
Forum: 12 Bolt Differential Questions
Topic: 65 rear axle question
Replies: 5
Views: 3546

Re: 65 rear axle question

Thanks for the info! Right now everything is still set to stock in terms of shims and gear mesh. No whining or grinding in it. Turns real smooth. But I'll definitely keep an eye on it. One last question- I've had a few people tell me I cant/shouldn't run synthetic gear oil in it. Is there any truth ...
by Classics65
Sat Apr 15, 2017 8:27 pm
Forum: 12 Bolt Differential Questions
Topic: 65 rear axle question
Replies: 5
Views: 3546

65 rear axle question

I'm building a street strip 65 Olds starfire and my question is how much power can the stock Pontiac 8.875" take. Has the 12 bolt ring gear 3.42 posi. Should be in the neighborhood of 550hp 600ft-lbs torque. Going to be running the amsoil racing gear fluid and lsd additive if that helps