[SCOTI]

Originally Posted by Captainfab

I would just get the rear end from the '78 if it is available. It is 1 1/2" wider though, so you could have tire to fender issues depanding on the size of your tires and wheels. The '71 &'72 rears are an easier swap, but they are 1 1/2" wider as well. The '95 Camaro 5 speed should be a T56 if I'm not mistaken, which would be a great upgrade IMO.....not simple but a great upgrade for mpg's.

5spd = T5
6spd = T56

The Camaro rear housing will work for the 20mpg goal but will be on the brink of reliability behind any drivetrain w/over the stock rating as the donor vehicle. By the time you get the housing, cut off the brackets, procure new correct brackets, weld them on..... it's a bunch of work vs. getting new aftermarket axles or a different truck housing w/a mpg friendly ratio.

Also keep in mind the Camaro rear end has a smaller car bolt-pattern for wheels (5x4.75" vs. 78 truck 5x5.00").