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Topic Review (Newest First)
10-12-2009 06:55 PM
Jerry Bransford Yep don't waste your hard-earned $$$ for a programmer, K&N, etc. as they don't make any performance improvements for a TJ. Regearing to a lower axle ratio is the only way to restore the performance lost due to having installed larger diameter tires.
10-12-2009 06:12 PM
nicolas-eric Go with a RE lift or something else. TM doesn´t have a good reputation.

Such a programmer doesn´t make a noticeable difference. If you want the power back that you lost because of bigger tires regearing is the only way to go.
10-12-2009 06:08 PM
bikerman
gear ratio

It has a 4.0. Would a programer like (edge etc.) make a big difference? I have a k&n drop in filter and magnaflow muffler. I was thinking about the trail master 4 in lift, good price. Any suggestions? I dont plan on any hardcore offroading, 98% street drivin. Thanks
10-12-2009 03:43 PM
nicolas-eric I only have a rear D44 (with drums andn not disks). I wished I bought a Rubicon in 2006.
10-12-2009 03:41 PM
jdhallissey I have a front 44
10-12-2009 03:38 PM
nicolas-eric
Quote:
Originally Posted by jdhallissey View Post
^ as jerry said I agree. All tho I run 5.13's in my tj with 33's and love every second of it.
Do you have a front D44?
I want 5.13 but I only have a D30...
10-12-2009 03:19 PM
jdhallissey ^ as jerry said I agree. All tho I run 5.13's in my tj with 33's and love every second of it.
10-12-2009 03:17 PM
Jerry Bransford It sounds like it does indeed have 3.07 which was a commonly installed ratio in too many TJs. For 33" tires and your 5-speed, 4.56 is an ideal all-around ratio for both street and trail.
10-12-2009 03:12 PM
jdhallissey What motor and axle in the rear please. If you want you can run out put the rear on jack stands. mark the tire and driveshaft. Turn the tire 1 full rotation while counting how many turns the driveshaft makes. I am guess if it is a 4.0l it is 3.07s with the 35 rear.
10-12-2009 03:05 PM
bikerman
Gear ratio?

I recently bough a 99 tj sport, I was told it probably had 373 gears. I looked at the diff tag and it shows 307s. Does this sould right, it currently has the rubicon wheels and tires on it 245/75 16, 5th gear is useless going up hills on the highway, Im thinking of putting on 33s, what ratio would be best?

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