Pull your rear D-shaft if you tow. Here is why;
Coming back from a week on the Dusy a friend of mine was dolly towing his 83 with the rear wheels on the ground. Both the T-case and the tranny were in neutral. He only had a 4:70 single T-case so the front d-shaft was at a good angle. He had made the DE-shaft so it was not balanced and not straight.
We were driving up I-5 at 65 MPH and all of a sudden, the rear wheels locked up causing him to almost get in a wreck. We put his rig on his Dad’s trailer and dolly towed his Dad’s Jeep.
When he got home and tore it down this is what he found. Blown rear R & P, Detroit locker messed up, blown tranny, and the front D-shaft was messed up.
What happened is the front D-shaft not being balanced or straight locked up at the CV, which caused the rest of the damage.
Ten minutes worth of work would have saved him a boatload of money.
All you have to do is take four bolts out at the diff and hang the D-shaft under the rig.