bcbill Posted August 11, 2017 Posted August 11, 2017 Hi guys, have recently picked up my 3rd mj, 2 wd, 1991 long box, with 5 speed(AX-15) newer 4.0, serial # search says it has 3:07 rear diff. Would like to convert to 4wd.Local jy has a front 4x4 axle from 1990 Cherokee serial # search says it has 3:07, I am gonna assume it would be vac operated, which I again assume is an easy fix? Question is should I look into using transfer case from the 90 Cherokee or look for a later year, would the 90 Cherokee have a Peugeot tranny or Ax15? Sent from my iPad using Tapatalk
Pete M Posted August 11, 2017 Posted August 11, 2017 I would use this opportunity to change both axles and get better gear ratios. :thumbsup:
Crash Posted August 11, 2017 Posted August 11, 2017 90XJ could have either trans. You would need to confirm Sent from my SM-N910T using Tapatalk
Eagle Posted August 12, 2017 Posted August 12, 2017 90XJ could have either trans. You would need to confirm Sent from my SM-N910T using Tapatalk No. The BA 10/5 was phased out early in the 1989 model year. Most '89s had the AX-15, and all '90s had the AX-15.
bcbill Posted August 12, 2017 Author Posted August 12, 2017 So the transfer case from the 90 should be compatible with the AX15 in my 91?hoping to pull everything from the one cherokee.. Sent from my iPad using Tapatalk
Eagle Posted August 12, 2017 Posted August 12, 2017 The transfer case will work, but I share the advice to swap both your axles to get a better ratio. XJ axles out of any 4.0L automatic should be 3.54 ratio, which is a lot more civilized than 3.07.
bcbill Posted August 12, 2017 Author Posted August 12, 2017 The rear diff is Dana 44, finding 3:54 for the 44 might be a challenge but probably not impossible, something to dwell on, was just happy to find the 3:07 and hadn't thought about changing ratio. Sent from my iPad using Tapatalk
Pete M Posted August 12, 2017 Posted August 12, 2017 I can understand the conundrum. the good thing is that the 44 is worth sinking money into it. :thumbsup: 4.10s are a nice improvement to a 4.0/stickshift :D
Crash Posted August 12, 2017 Posted August 12, 2017 90XJ could have either trans. You would need to confirm Sent from my SM-N910T using Tapatalk No. The BA 10/5 was phased out early in the 1989 model year. Most '89s had the AX-15, and all '90s had the AX-15. So the transfer case from the 90 should be compatible with the AX15 in my 91?hoping to pull everything from the one cherokee.. Sent from my iPad using Tapatalk Been corrected, but I believe early AX15 are 21-spline. Would need to confirm. Sent from my SM-N910T using Tapatalk
Pete M Posted August 12, 2017 Posted August 12, 2017 far as I know, early AW-4s are 21 spline. AX-15s are all 23
bcbill Posted August 12, 2017 Author Posted August 12, 2017 The donor is 90 Cherokee 5speed, will check when I pull transfer case and let you know what the spline count is... Sent from my iPad using Tapatalk
Eagle Posted August 13, 2017 Posted August 13, 2017 The rear diff is Dana 44, finding 3:54 for the 44 might be a challenge but probably not impossible, something to dwell on, was just happy to find the 3:07 and hadn't thought about changing ratio. Sent from my iPad using Tapatalk Finding 3.54 gears for a Dana 44 is a walk in the park. EVERYONE has gears for the Dana 44.
bcbill Posted August 13, 2017 Author Posted August 13, 2017 Just went to google, you are so right on, EVERYONE has 3:54... Sent from my iPad using Tapatalk
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