I have a 8.5 inch 10 bolt in my '72 Nova that I am looking to upgrade. It currently has an open differential with 2.xx gears. I want to build it to handle approx. 550 ft-lbs from a big block. It will be mostly street use with a couple times a year on the strip. Would like to not worry about rear end if I decide to throw on some slicks.
So looking at Eaton differentials they have 28-spline and 30-spline carriers - would the 30-spline work with my rear? I know I will have to replace to axles if the 30-spline will fit. What about C-clip eliminators? Since I'll be replacing most components in the rear end I would like to get rid of the C-clips also.(if needed)
I am planning on putting in 3.42 gears. So what I'm looking for is to build a strong 10 bolt that will last years under moderate to occasionally severe abuse.
1972 Rally Nova
454, TH400, Ford 9", mini-tub, BFG 345 drag radials, 8 pt roll bar
1965 Chevelle Malibu SS
327, TH350, 12 Bolt