My buddys got a 75 2wd 10 bolt. Hes wanting to put a posie in it. Is it going to be the 7.5" or the 8.5 ".

Thanx Dave

8.5 unless it came out of an S10

In '75, 10 bolts were only used in cars. Trucks didn't get rear 10 bolts until 1981. A '75 half ton came with a 12 bolt.

Is it a 3/4 ton or 1/2 ton? 8 lugs or 6?

Cause if its an 8 lug axle, its more than likely an Eaton. They got 10 bolts on the diff cover.

Its a 6 lug half ton. It is a round diff cover and has 10 bolts holdind it to the case. And there are no open holes in the cover ither. :flipoff2: I know how you pirates opperate. LOL

Dave

so its not the stock axle.

more than likely, its an 8.5" ten bolt, made from 77-87. these will bolt in a pre 77 truck without modification, and have 28 spline axleshafts.

good posibility.

2WD's had 5 lugs

not all.

70+ 2wd had 5 lug.

before that it was 6 lug and then 5 lug again before that.

oh.... damn.

i learned something today.. thanks, trkkl77.

73 and later didnt have 6 hole 2wd stuff. but it was available in disc form for vehicles for 70-72... neat.

i guess the parts are out there, at LMC...

I don't know the exact rule but in the 1960s Chevy 2wd 1/2 tons were 5 lug and GMC 2wd 1/2 tons were 6 lug in the same years. Hijack off.

I don't know the exact rule but in the 1960s Chevy 2wd 1/2 tons were 5 lug and GMC 2wd 1/2 tons were 6 lug in the same years. Hijack off.

buds wheel patterns, 6-5 x 8.75[?] ish