Gear ratio


Which drivetrain do you have?

Generally speaking,
2.5L auto is 3.73 gears
2.5L manual is 4.10 gears
4.0L manual is 3.07 gears
4.0L auto is 3.73 gears
 

Mine had 308. I have a man 4.0. I upgraded with 410 front and rear. I've seen the 308 push a 35in tire.
 
My 98 wrangler had 3.73 stock, and it was the manual 4.0. A good way to know for sure is to check the front & rear diff covers to see if it has a tag that will tell you what the ratio is.
 
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