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Discussion Starter · #1 ·
I have a 1993 Geo Tracker that I recently installed a 4.5" Rocky Road lift on and the tires went from 205/75R15 to a 31-10.50X15 BFG's. This has killed my power and fuel mileage, and my speedometer is about 5 MPH slower. The original gear ratio is 4.625:1 anyone have any thoughts to what the gear ratio should be to get me back to near factory???
 

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Discussion Starter · #4 ·
The speedometer is not my main concern but with getting back the power and fuel mileage. Any thoughts on what size gear will get me back there??
 

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Only gears available are:

Used 5.12s..pretty cheap
Used 5.38s...getting expensive
Used 5.72s...prepare to feel violated
Used 5.83s...prepare to feel violated...and break them.

There is a website in turkey which sells a set of gears for these...but nearly no one has them.

If I were you, Id go to 5.12s and deal with it.

Your mileage is effectively limited now to 25...tops. less if you bought heavy 31s.

Sorry to be the bearer of bad news.
 
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