I have 97 with what I believe to be the 3.55 or a 3.73, I havent crawled under to look at the take and find out. But my question is this, I am running 33 all terrains. I do light trail driving, no mudding, and the rest she is a tar baby. I do want to build a 4.6 stroker over the winter, would I be better off with 4.11s? What can I expect as a difference with these (or a different ratio) will it make the power and mileage better or worse?
07-23-2012 02:38 PM
3.73 didn't come along until '98, '97 4.0L engine equipped TJs came with either 3.07 or 3.55. For 33" tires and 5-speed transmission, 4.56 is the optimal axle ratio when you have the 4.0L engine. :)
07-23-2012 03:03 PM
456 work great just have to change the speedo to get proper mph. They r bad ass gears.
07-24-2012 10:18 AM
Ok dumb question, do I regear just rear or front and rear?
07-24-2012 10:20 AM
You have to regear both axles. If you couldn't spend that kind of $$$ all at once, you coud do just regear the rear first and then regear the front axle later, but you couldn't drive in 4x4 until both axles have been regeared.