Join Date: May 2001
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Anyone know what kind of compatibility there is between the GM NP231, the 241, and the Jeep stuff?
I've been thinking about getting a doubler setup, one of the ones that uses an NP231 set of planetaries, the only problem is that its another 7" and my angles are PERFECT right now.. I'd really like to keep them that way.
So I got to thinking, the adapter for the th350-D300 is about 5" long or so.
GM did put 231s and 241s in their trucks right? behind Th350s, and 700R4s.
But what adapters did they use to go from the 4 square bolt pattern to the NP231 pattern (6 bolt circle i think it is)
I've seen lots of pictures where they use a completely flat adapter.
So assuming the cases are identical except for the input gear (23 on jeep, and 27 on the chevy) I could use a Chevy case, bolted straight to the Th350, then use the doubler kit to bolt from the 231 planetary box to the D300.
But this only works if the cases are identical in every shape/form.
anyone know about these two/three?