I wouldn't want to have two spares. I think there is a Datsan/Nissan rear end that some have used that is six lug.

The closed AD rear ends I have have a 10 bolt pattern that looks the same as an open drive line rear end that is from a Chevy pickup that used the truck arm mount with coils springs. I have never broken a stock closed driveline or it's rear end.

There was a Truxtill (?) Overdrive that mounted into the closed driveline. I have actually only seen one on a pickup my friend had. I'm sure his in-laws have destroyed it by now. It operated much like a Borg Warner OD but was in the driveline. Ot had cables, linkage, and switches.Without a complete unit it would be hard to make work.

There are other OD transmissions beside the T-5s that have been used. The more you look dig into this stuff the more confusing it gets


"I wonder if God created man because he was disappointed in the monkey?" Mark Twain