Just re-visiting some older threads: I guess this has been discussed to death, maybe - but is there anyway to mount the B-W overdrive unit found on Chevy 3-speeds to the back of a SM-420?? I know it has been done with 4-speed car transmissions.
Any way to mount any overdrive to a SM-420? I know there are adapters/kits to mount 4x4 T-cases... Just trying to brain storm someway to get an O/D with my SM-420.
