I've searched and read many posts relating to my topic, but none really answered my question. I have an 89 Renix MJ that I am swapping over to HO. Found junkyard HO MJ engine and interior wiring harness.
My 89 has the AX15/ 231 combo. From my research online and in the Jeep parts manuals...My 89 AX15 is the same unit/ part# as they installed in 91 HO MJ's. My 231 is obviously getting tossed for a 91 transfer case. But, here's my question: Is my current 89 231 a 23-spline because from what I can tell according to the Jeep parts manuals it is a 21-spline case; however, most websites (including Novak) say that AX15's always have a 23-spline case behind them no matter what year? Any insight of what's the truth?
Finally, assuming my current case is a 23-spline, I'm guessing my 89 AX15 would have no issues bolting up to a newer 231 (91 or 92 XJ era)?
Thanks
My 89 has the AX15/ 231 combo. From my research online and in the Jeep parts manuals...My 89 AX15 is the same unit/ part# as they installed in 91 HO MJ's. My 231 is obviously getting tossed for a 91 transfer case. But, here's my question: Is my current 89 231 a 23-spline because from what I can tell according to the Jeep parts manuals it is a 21-spline case; however, most websites (including Novak) say that AX15's always have a 23-spline case behind them no matter what year? Any insight of what's the truth?
Finally, assuming my current case is a 23-spline, I'm guessing my 89 AX15 would have no issues bolting up to a newer 231 (91 or 92 XJ era)?
Thanks