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Old 03-06-2011, 03:27 PM   #1
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Newbie Lookin For Tranny Advice

Ok so the tittle seems a bit..... odd but I do have a question about transmissions and wanted to see if anyone on here had ever tried to swap out their 4WD tranny for a 2WD.

I have a 2000 Wrangler (TJ/YJ???? IDFK?) which I've been driving since '02. With fuel prices being what they are and a 40-60 mile one-way commute I have GOT to do someting about MPGs. The Wrangler is a 2000 4.0 Sport with a manual transmission. I currently get about 16 MPG.

I read on ask.com that you can increase efficiency by simply removing the forward drive shaft. This seems easy and practical as it could be replaced when needed but I don't know how much this will improve fuel economy.

I'm wondering if it would be possible/advisable/practical to swap out the entire tranny for a 2WD model possibly from a Cherokee. My thought is this would eliminate the bulk and weight from the transfer case an drastically improve the MPG.

On a separate note if anyone has a cure-all for the dreaded "death rattle" I'd love to know. I swapped the steering stabilizer a last summer and that cleared it up but true to form... it's baaaaack!

Any thoughts would be greatly appreciated.

Bob

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Old 03-06-2011, 03:41 PM   #2
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First of all welcome to the forum. You have a tj so you should direct your questions to the tj forum. There is a really good write up that is a "sticky" in the jk forum the will help with death wobble or dw, not rattle.
As far as removing the front drive shaft to improve mpg, don't waste your time. A complete tune up and careful driving will trod far better results. FWIW 16 mpg is about what you should expect.

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Old 03-06-2011, 03:49 PM   #3
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You also need to keep in mind the up front cost of such a transmission swap. Why spend $2-5k on such a swap when the payback time could be 5 years? You are much better off buying a beater car that gets high MPG. I just bought a 4 cylinder Saturn myself for $1500, payback will be in less than 1 year with my savings
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Old 03-06-2011, 05:35 PM   #4
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park jeep buy scooter lol''' {jk}
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death rattle , mpg , transmission

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