2.5 to 4.0 swap i got questions - JeepForum.com
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Unread 01-23-2015, 01:54 PM   #1
Registered User
1996 XJ Cherokee 
Join Date: Nov 2012
Location: Palm Harbor, FL
Posts: 164
2.5 to 4.0 swap i got questions

so im in the process of buying a 2.5 with an ax5 but i have a perfectly good donor 4.0 and aw4 to swap in. how in depth would the swap be if i wanted to retain the manual and if not would i only have to swap the harness and computer to mate the 4.0 and aw4 auto into it? also do i have to mess with the motor mounts at all or are they the same as the 4.0? just wondering so i can get my parts together before hand

JeepDaddy1993 is offline   Reply With Quote Quick reply to this message
Unread 01-23-2015, 11:19 PM   #2
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1984 XJ Cherokee 
Join Date: Oct 2010
Location: Olympia
Posts: 25
Not an expert on this swap but I do know the Ax5 will not bolt to the 4.0, and no one makes an adapter for a reason. Also you will have to find a 23? Spline input shaft for your transfer case as the ones used with the 2.5 are 21. Also will need different length driveshafts and probably a whole bunch of other things as well (radiator core support, transmission mount and different location, etc).
CherokeeBen is offline   Reply With Quote Quick reply to this message

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