randamonium Posted August 20, 2008 Share Posted August 20, 2008 I would like to know if there is some kind of parts cross reference/compatability out there or if anyone knows if you can swap out a 4 speed trans for a 5 speed trans and across how many model years are they bolt up? I have a 1987 comanche with 4 speed and 2.5 engine, I lost 1st and 2nd gears and I would like to goto a 5speed tranny, I am hoping to improve gas mileage, so I need to know what model years are compatable ( direct bolt up) :USAflag: Link to comment Share on other sites More sharing options...
Pete M Posted August 21, 2008 Share Posted August 21, 2008 Any 5 speed found behind the 2.5L will work. :D Link to comment Share on other sites More sharing options...
randamonium Posted August 21, 2008 Author Share Posted August 21, 2008 Thanks Pete you are a big help Link to comment Share on other sites More sharing options...
Geonovast Posted August 21, 2008 Share Posted August 21, 2008 Any 5 speed found behind the 2.5L will work. :D ...MAYBE. Rumor has it the T-5 was used, sparingly, behind the 2.5 and 2.8 in 86 MJs. Only problem I could see running into is a different clutch. Also, the 2.5 and 2.8 used the same 5 speed, same bellhousing, so you could used one of those too. Link to comment Share on other sites More sharing options...
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