What years are interchangable for a 1996 GMC Jimmy 2X4 rear end?

[doublerranch74851]

My Jimmy keeps blowing the rear driver axle bearing and wheel seal. The condition of the axle is in question and I have decided it would be better to replace the entire axle.

I have found a good complete rear axle for $125 from a 99 model and want to make sure it is interchangeable with the 96.

Thanks