Mason Suntheimer Posted June 12, 2023 Share Posted June 12, 2023 I have a 1990 jeep comanche that needs a new transfercase. It has a manual transmission with the 4.0 motor. I know that I need a 231 j transfercase but I'm unsure if I need a short/long & 21/23 spline? Link to comment Share on other sites More sharing options...
OldSch88L Posted June 12, 2023 Share Posted June 12, 2023 A 4.0 liter manual should be a 23 spline short input shaft transfer case. Link to comment Share on other sites More sharing options...
Mason Suntheimer Posted June 13, 2023 Author Share Posted June 13, 2023 Thanks, much appreciated. Link to comment Share on other sites More sharing options...
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