Need help finding the right axle ratio! -
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Unread 12-17-2006, 01:54 PM   #1
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Join Date: Jun 2005
Posts: 4
Need help finding the right axle ratio!

I am hoping that some of you guys can help me with this dilemma:

My 05 4cyl TJ has 31" tires and the stock 3.73 gear. Needless to say that this is not the quickest rig out there! I was too damn cheap to buy the 6cyl in the first place and now I'm paying for it with a variety of performance mods.

Here are my questions:

1) What's the benefit of installing a 4.10 gear?
2) Does this require additional mods of any kind -- e.g. axle?
3) What's the approximate cost of re-gearing?

I appreciate your help and comments!!!


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Unread 12-17-2006, 02:07 PM   #2
This is Ames Mister...
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1992 XJ Cherokee 
Join Date: Dec 2006
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I thought all 4cyls came with 4.10's?

If you do have 3.73's it would be a waste of money to swap to 4.10's, IMHO.

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Oh man Chili. I feel like a recovering addict that just had a bag of blow, a bottle of Jameson, and a sack dropped in his lap. You screwed me man!
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Unread 12-17-2006, 02:50 PM   #3
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Auto 4cyl had 3.73. It will cost anywhere from 800-1500, really depends on the place. Switching to 4.10's would be a waste, with a 4 I'd go 4.56 or 4.88.
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Unread 12-17-2006, 03:17 PM   #4
Have Cummins, Will tow.
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1999 TJ Wrangler 
Join Date: Mar 2005
Location: El Paso, TX
Posts: 11,804
if you plan on going bigger like 33s or 35s in future, regear to 488s
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