It's been so long since I've done any work on a first gen rear end. And I don't really remember all the swap details. I need to know if it is even possible, and if it is, what is needed to be done if anything?

my car is a 83, and I have a set of GSL SE axles. I want to install the axles in the 83 rear to convert to 4x114.3 bolt pattern.

 

GSL-SE axles are a little longer because of the vented brake disks. The GSL brake disks will be pushed out and won't work with the calipers any more.

 

 

It's my understanding that all 1984/1985 rearend housings are big axle, even the drum ones.

 

^Correct, all 84/85 housings have the same spline/bearing size so the axles are all interchangeable. You would have to fab retainers, and a bracket to use disk brakes, but the axles themselves work without modification. I know because I've done this!

83 and earlier housings are small axle, and will not accept a SE axle.

 

Man I need a set of GSL-SE axles