All heavy duty overdrives installed since inception up to and including 1995 will be a RH.
1996 was the first year for RE.

Light duty overdrives went to RE in 93-1/2 in the Grand Cherokee (A500).

All 360 were externally balanced while I believe all 318 were internal.

Last edited by Transman; 07/14/19 05:02 PM.