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Old 10-12-2006, 07:27 PM   #1 (permalink)
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Acceptable ratio difference

Money concerns have got my plans changed temporarily, so I am going to have to reuse my rear axle which has 4.63 ratio. My problem is that I have a D44 for the front and gears jump from 4.56 to 4.88. Are either of these acceptable?
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Old 10-12-2006, 07:32 PM   #2 (permalink)
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I have always 'heard' that 2% difference is the limit. So based on that, the 4.56 gears at ~1.6% difference would be within the acceptable range. 4.88's are too far off. A lot of that probably has to do with the type of terrain you wheel and how much 'slip' it allows to avoid binding.
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Old 10-12-2006, 08:55 PM   #3 (permalink)
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with 4.56's in the front your front axle will be dragging your rear axle. with the 4.88's your rear will be pushing your front. but alot of people run 5.38's in a d44 front and 5.29's in a toy rear.
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Old 10-13-2006, 12:56 PM   #4 (permalink)
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many manufacturers (I know our nissans don't) run a slightly higher gear ratio in the front to make them faster, and turn better. I.E 4.09 front with 4.11 rear. If it was me, I personally wouldn't do any of that. If you're going 35's or more, you're going to have no power at all. I would recommend gearing the back right, and driving it 2wd until you have funds for the front gears. I'm going to be doing that on my build, to get it on the road.
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Old 10-13-2006, 03:22 PM   #5 (permalink)
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4.63 and 4.56 work fine
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Old 10-13-2006, 06:11 PM   #6 (permalink)
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it's not ideal but it should work fine
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Old 10-14-2006, 06:28 PM   #7 (permalink)
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I ran 3.27s in front of my beater and 3.50s in the rear.... worked good in mud; however, t-case made some weird sounding noises on hard-pack... wouldn't run it under a lot of HP..
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