I used the rearend out of a '79 Trans Am. There are all types of upgrades for this and its posi traction. Be sure to move the spring center bolt hole in the perch 1/2" back before you weld it on, much easier, and that will put your axle back in the center of the wheel well. It changes the rear to 5 bolt but then another thing to do is get a set of front hubs from a 50's Buick sedan and then you will have 5 lug all the way. Then no looking around for wheels. The pinion degree should be around 4 degrees.
