Looking to re-gear and hoping for suggestions.

TerryMason

Administrator
Staff member
I'm looking to change out the 3.73 gears in my 2005 Jeep TJ. It has the 4.0L and the 42RLE auto trans. I currently have 33s, and may upgrade to 35s in the future (but this isn't set in stone).

I've got a dana 30 with a lunchbox locker in the front, and a ford 8.8 with a factory limited slip in the rear.

I've been doing research, and I've found a couple of sites that say 5.13s are where I want to be, but others say 4.88s would be ideal. Any opinions on what would work best for my mostly street, offroad twice a year Jeep?
 

32s with 4.10 is awrsome on our 4.0/42rle.

I would bet 4.88s make 33s spin easily, like the 4.10 does on the 32s. Maybe even easier.

For 35s though, i would get the 5.13
 
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