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SAE #3 vs GM Bellhousing

Scholioso

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Alrighty, got an update for ya'll. Yesterday, I drove 9 hours (round trip) to pick up some parts. I scored an allison 4x4 trans, tcm, transfer case, driveshafts, & a full float 11.5 AAM 4.10 rear end out of a 8.1 truck. All of this for $500!

I know FERM was suggesting to use the A40 tcm. This one looks way different. Will I be able to run the one I just picked up or should I get an a40 tcm still?
 

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FRANKENBURBAN
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The a40 is if you wanted a 6 speed. If it's rectangular with a red and grey plug, it's a 5 speed tcm. I've heard they will default to a wired tps just like an a40 will(you must use the allison tps I've heard, it has a different output range from most others).
 

Scholioso

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The a40 is if you wanted a 6 speed. If it's rectangular with a red and grey plug, it's a 5 speed tcm. I've heard they will default to a wired tps just like an a40 will(you must use the allison tps I've heard, it has a different output range from most others).
Ok, gotcha. So if I want the 6 speed, I gotta get an A40. Ok perfect! I'll sell this tcm & the electronic shift transfer case & get a manual shift case & a40 instead.
 

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FRANKENBURBAN
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There's somebody out there offering a 6 speed conversion kit you could probably get to work, but it's ALOT more money than an A40 will set you back.
 
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