The vacuum shift rear is more than likely the GM Corporate rear.

The electric shift rear is more then likely an Eaton rear.

To the best of my knowledge the drums are different...

Mike B smile


Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD