Jeep TJ 4 Cyl Gears

geomoutj

New member
Hi Guys!!!!
Can you pls advise which is the best gear ratio for my TJ 4 Cyl (2.5) running 35's (315 75 16). I was thinking of 4.88s

Thnx in advance Guys.


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BananaJeep

Caught the Bug
I'll be running 4.88s in my 2.4L 4cyl TJ when I put 33s on. In your application with the 2.5L being a little less powerful, 5.13's would probably be better. What axles are you running?
 

BananaJeep

Caught the Bug
I would recommend NOT putting 35s on until you replace those axles. The Ford 8.8 swap (Google is your friend, there) is a popular swap and is a VERY strong axle in a TJ. As for the front... if you can find a good deal on a Rubi 44 out of a TJ, not a bad swap. But even swapping in a high pinion Dana 30 is an improvement over what you have now. If you put 5.13s in a low pinion 30, your pinion gear is VERY tiny and you risk breaking it.
 
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