Re: 1988 XJ Transmission replacement
Tim, unless you are willing to do some fabrication and adapt non Jeep transmissions to your Jeep, you have limited options. The one you have, the AX-15 is considered a pretty good transmission. I have rebuilt one and as far as I am concerned, they are stout enough for the 4.0L six. But if you want one that is an upgrade that bolts in, then the NV3550 is the only bolt in option. I believe they are found in the 2000 and up Jeep XJ and TJs.
230 hp 4.3L Chevy
Built 4L60E with manual lockout
Atlas 4 speed
Griffin radiator
On board air
Warn 9.5ti on custom bumper
7.5" RE front and bastard pack rear on custom long arms
30 gal gas tank
lockers
And a bunch of other stuff
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