Chevrolet Overdrive Tranny?

[AK20]

4l60's are pretty strong trannies, they have been proven to hold up to bigger motors and tires than what you have on your Jeep. Of course the 4l80 is the better of the two, but I'm sure you'd have an easier time finding the 60 and probely get it cheaper as more and more people are looking for the 80's...the 4l60 is basically a newer electronic version of the chevy 700r4, so there is always that route too.