stumbledin
+1y
Yes, the arms, crossmember and all from any 63-87 square body GM truck and some duallys and suburbans thru 91 all have the same basic suspension.
so get the spindles, arms and all from any GM fullsize from 71-87 and have disc brakes. plus drop spindles and drop springs are available, plus bag setups, plates and all that.
The rear is a different story. So just cut it all off and start with new mounts in the rear.