Yes GM made one 64-82 but, they don't swap into the 65-72 Car 12-Bolt.
Used to be possible but, I don't know if the specialty Bearings are still made.
Truck Pinion gear Diameter is 1.438", Car Pinion Dia. is 1.625"
The gm truck 12 bolt is a tough rearend. I've beat the heck out of them and they still survive. Just don't use the gov-loc carrier. The axles are 30 spline and i think the side bearings interchange with the car 12 but not much else. One thing i like about the truck 12 is that lots of good gear ratio's are easy to find in junk yards. 3.73 is really common as well as 3.40 and 3.07 . I've cut up truck 12's and built them to fit camaro's but because of the cast center it would be tough to adapt them into a g-body unless you were converting to ladder bars.
brian
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.