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4.56s or 4.88s

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Old 08-10-2010, 05:56 PM
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Default 4.56s or 4.88s

Hey guys Im lokkin for find out if anyone is runnin either of those gears with 33s??? If so how is it down the highway or whats my best option?
Old 08-10-2010, 06:30 PM
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May not be of much help, but with 4.88's I'm running 2700-2900 RPMS at 75mph with 35's.
Old 08-10-2010, 06:43 PM
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Originally Posted by TonyB
May not be of much help, but with 4.88's I'm running 2700-2900 RPMS at 75mph with 35's.
See 35s are in my far future but if im gonna drop a grand on rebuilding my axles i might as well gear for 35s now ya know? Thanks for the help! What you RPMs you got at 65?
Old 08-10-2010, 07:32 PM
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I dunno...low 2000's? I normally drive around 75mph.

It's kinda odd. I had stock gears with 32's and got like 13mpg. I put the 35's with 4.88s on and i'm getting a good 15-17mpg now. That, and not NEEDING to go into 4LO is pretty nice when off road.
Old 08-10-2010, 07:55 PM
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AHA! I new 32's on 3.55 was worse on fuel than 4.10s! Sorry to throw that in there but i knew something was funny with my mpg.
Old 08-10-2010, 08:00 PM
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Originally Posted by KTMrider
AHA! I new 32's on 3.55 was worse on fuel than 4.10s! Sorry to throw that in there but i knew something was funny with my mpg.
Yeah right now Im 31s and 3.55 not cool haha I search in and out of OD all the time!!!
Old 08-10-2010, 11:23 PM
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what rear axle do you have? 29 spline 8.25, d44, ford 8.8?

i wouldnt regear if you have a d35
Old 08-10-2010, 11:34 PM
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go with 4.56's, I just re geared mine with only 31's nowing that I am getting 33's in a couple days and the new ratios are a night and day difference. A little high in the rpm range right now because I only have 31's but when I get the 33's they will be spot on im sure.
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