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They are generally the same, but I would think there are wiring harness and computer control differences...perhaps JLEMOND will chime in with the info. Or try to PM him.

Does OBD II apply to trannys? Not sure. My guess is the OBD I versions will work, that would be 92-95 Troopers...but confirm that before moving on any piece.


ANY OF THE 4L30 TRANS ARE BASICALLY THE SAME UP THRU 99,AFTER THAT , THEY WONT INTERCHANGE , THE WIRING CONNECTORS AT THE TRANS WERE CHANGED AND THE TROOPERS WENT TO A PULSE WIDTH MODULATED CONVERTER APPLICATION, THAT ONLY THE TROOPER AND THE 2002 AXIOM USED , THE BIGGEST DIFF IS THAT THE LATER ONES DONT HAVE A DIPSTICK, JUST A FILL PLUG. JERRY