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Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

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post #1 of (permalink) Old 10-15-2003, 06:40 PM
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to purchase or not to purchase

hey guys i found a 94 wranglers with a 4 cylinder and 5 spd for abut 4400. its got decent miles one it. i like the way it looks but im sure i would put a 2.5 inch lift on it or more and prob 32s. i kno people say that the 4 cylinder is weak but im moslty gonna b doin some trails and mayb some small mud holes/ nothin big. do u think the 4 cylinder would b ok with 32s or bigger? or should i go smaller than 32's? and will i b happy with its perfomance on trails as well as on the road (highways are what i am worried about) can u guys give me your opinions and suggestions

p.s. how much does it cost to have ur axle gears swapped?

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post #2 of (permalink) Old 10-15-2003, 06:43 PM
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Re: to purchase or not to purchase

You'll be fine off-road, but on the highway, I think you will not be pleased.
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post #3 of (permalink) Old 10-16-2003, 08:19 AM
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Re: to purchase or not to purchase

I'll second that opinion. I have a '92 YJ with the 2.5L and 31's, it is ok on the highway, if you don't ever want to go over 65 MPH.

I am planning on doing the 4.0L throttle body swap with a 4.0L TB spacer. I've read many places that if you do this, and match the hole in the manifold to the spacer, it will allow you to run 33's with stock gearing on the highways with speeds up to 75 MPH. The dyno resulst were something like 24 horsepower increase and 39% airflow increase. Cheap fix if you ask me. Used throttle body from a junkyard is around $50, and a smooth bore spacer can be had for about the same. Then just a little time and some dremel / die grinder work to the intake manifold. Check this out for the complete thing.

Hint: If you do this swap, get a TB spacer with a smooth bore in it instead of the kind that Poweraid sells with the "Helix" design. This design actually protrudes into the flow right after the throttle body and slows air flow. It's been dyno'ed, and actually creates about 2-3 HP because of the cooling you get from the rise of the spacer, but you get less air flow.
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post #4 of (permalink) Old 10-16-2003, 08:32 AM
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Re: to purchase or not to purchase

I agree. You can gear the axles down to get the results you want off road, but the engine will be screeming down the highway. I had a pro put my gears and ARB's in both my axles and it was about $400 for labor. That might be high, as we don't have a large selection of auto repair places/4wd shops where I live. Gears are about $100-150 per axle and master install kits (bearings, shims etc) are about $75-100 each.
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post #5 of (permalink) Old 10-16-2003, 08:56 AM
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Re: to purchase or not to purchase

Check for rust! Be prepared to spend money!.....It's a Jeep thing!
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