Aw4 in 98 & 91 - Pirate4x4.Com : 4x4 and Off-Road Forum

psulliva · 10-27-2008, 10:33 PM

is there any difference between the aw4 in a 91 xj and a 98 xj, like the tcu or wire harnesses?

thank you!

oldjeep · 10-28-2008, 04:33 AM

Yes, a lot of differences. The 97 and up have 2 speed sensors on the tranny and are not compatible with the 91 TCU. The 91 might be 21 spline or 23 spline, the 98 is 23 spline.

psulliva · 10-28-2008, 10:54 PM

so will a 98 transmission with the tcu work in a 91 cherokee?

oldjeep · 10-29-2008, 04:54 AM

Quote:

Originally Posted by psulliva

so will a 98 transmission with the tcu work in a 91 cherokee?

I doubt it. It's unlikely that the 98 TCU would even plug into the 91 harness.

You should be able to use 91-96 tranny with no problems.

psulliva · 10-29-2008, 12:09 PM

how hard would it be to get new harness and make it work?

ashmanjeepXJ · 10-29-2008, 11:52 PM

This might help you.

2000 AW4 wiring in a TJ swap
http://www.stu-offroad.com/engine/aw4/wiring4tcm.htm

psulliva · 10-30-2008, 03:07 PM

thank you ashman!

10-27-2008, 10:33 PM	#1 (permalink)
psulliva Registered User Join Date: Feb 2008 Member # 108207 Location: Love town Colorado Posts: 49	Aw4 in 98 & 91 is there any difference between the aw4 in a 91 xj and a 98 xj, like the tcu or wire harnesses? thank you!

10-28-2008, 04:33 AM	#2 (permalink)
oldjeep Pirate4x4 Addict! Join Date: Mar 2001 Member # 3511 Location: MN Posts: 5,387	Yes, a lot of differences. The 97 and up have 2 speed sensors on the tranny and are not compatible with the 91 TCU. The 91 might be 21 spline or 23 spline, the 98 is 23 spline. __________________ Chuck P The clowns'? Oh, yeah, the clowns. We fight them too — entire armies, spilling out of Volkswagons. We do our best to fight them off, but they keep sending 'em in! www.oldjeep.com

10-29-2008, 11:52 PM	#6 (permalink)
ashmanjeepXJ Moderator Join Date: Feb 2002 Member # 10249 Location: Vail, Arizona Posts: 4,515	This might help you. 2000 AW4 wiring in a TJ swap http://www.stu-offroad.com/engine/aw4/wiring4tcm.htm __________________ Dave, 2013 KOH "Got, Some of it" #697 JIMMY'S 4X4 Grand Cherokee Buggy ADS Shocks LQ4-Th400-Atlas4sp D60 14B Come wheel with us WheelingArizona.com Ashman's youtube channel Last edited by ashmanjeepXJ; 10-29-2008 at 11:53 PM.

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10-28-2008, 10:54 PM	#3 (permalink)
psulliva Registered User Join Date: Feb 2008 Member # 108207 Location: Love town Colorado Posts: 49	so will a 98 transmission with the tcu work in a 91 cherokee?

10-29-2008, 12:09 PM	#5 (permalink)
psulliva Registered User Join Date: Feb 2008 Member # 108207 Location: Love town Colorado Posts: 49	how hard would it be to get new harness and make it work?

10-30-2008, 03:07 PM	#7 (permalink)
psulliva Registered User Join Date: Feb 2008 Member # 108207 Location: Love town Colorado Posts: 49	thank you ashman!