I obtained a 12 bolt from a 70 chevelle with 4.11 posi gears for too good of a price to turn down. From what I can tell, length wise its very close to swap in. I can swap the spring perches no prob and am going to fab up modified 4 link also to eliminate the torque arm. One thing I cant find out easily is if my factory disc brakes will swap over to this rear end. I did find out that the conversion kits out there work with both 10 and 12 bolts, so there must be similarities at the least.

 

The housing ends on all of the 8.2, 8.5, 12 bolt and many 7.5 Chevy car rear ends are the same, except for the full size cars.

 

yeah they call the 7.5/7.6 ends small ends.. if it has the small ends they should bolt up fine

 

The 7.5 had 2 different ends. The late '70s through the '80s they had a triangle shaped brake flange that used 3 bolts to hold the backing plates. Then they went to the standard 4 bolt flange, which is the same as all of the other rear ends. They all use the same axle bearings and seals.

 

Yes, the third gen disc brakes bolt up.

 

sweet, thanks everyone for the help, much appreciated. Now, on to the hard part of putting it in, but at least that wont be until spring.