[big gear head]

All of the Chevy car 12 bolt differentials and gears will swap. The truck 12 bolt is different and the car differential and gears will not swap with the car 12 bolt.

Before you remove any gears or parts be sure that you do a pattern check and measure the backlash. Take pictures of the drive and coast pattern so that you will know how to set the gears when you install them in another housing. You will have to shim the pinion and set the backlash and bearing preload all over again when you swap the parts from one housing to another.