I have the 5 speed manual transmission and just had a random thought.
Is there a kit or is it even possible to swap out the 5th gear to one with a different ratio for interstate speeds to get better gas mileage at the higher speeds?

Probably a stupid question but had to ask.

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2003 Jeep Liberty Renegade (silver)

Top of my head, maybe add a Gear Vendors overdrive.

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Aaron

A vehicle isn't yours till you learn to wrench on it yourself.

2002 Jeep Liberty Sport (Eugene, I am the Passenger, And I ride and I ride.)
1999 Chev Astro 2WD (Green, Daily Driver)
1997 Chev Astro AWD (Grumpy "The Heep", $250 Rally Van, 335k miles, 2" lift, 31" tires)

hmm looks interesting, although i didnt see one for jeeps on the site, and look like they only work with 2wd?

seem pricey but maybe something to look into in the future as my curiosity runs wild lol

the reason it crossed my mind was i have been making a lot of long distance trips lately ( 8 hour drives at interstate speeds) and at around 75 my rpm's are somewhere around 2700. was thinking it would be nice to lower it (other than just slowing down lol)

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2003 Jeep Liberty Renegade (silver)

is there any difference in the final drive ratio of the 6 speed manual gearbox over the five speed? If so you could swap in a six speed

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2002 KJ 2.4L, 5 speed, tint,home-brew frankenlift, 31/10.50/15 Duratracs on soft 8s, Detours Backbone, Smittybilt XRC8, Homebuilt Lightbar w/ 4 100w lights
2004 TJ Rubicon 2 in bb genright hyline tube fenders 35 inch goodyear duratracs
2003 Chevy Suburban stock

yea i thought of that too, definatley my choice if this transmission ever breaks on me for some reason lol
buying a overdrive unit doesnt seem like a bad idea either but at 3000 dollars plus adjusting drive shaft lengths, i could probably find a 6 speed for that much or less

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2003 Jeep Liberty Renegade (silver)