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Unread 02-21-2012, 07:05 PM   #16
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1991 XJ Cherokee 
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also as far as gearing for a offroad rig with a 4 banger. my 94 4 banger was great offroad with stock 4.10 gearing i had 33s on it

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Unread 02-21-2012, 07:25 PM   #17
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Originally Posted by ThomasYJ

well along with weight also your intentions/ driving style come into play: rock crawling, racing, Hwy commuting, towing etc, lead foot vs light foot. To a point, a lower gear ratio will give you quicker acceleration, and more torsional force to the wheels with less effort from the engine, but it will lower your top speed. Whereas a higher gear ratio will lessen the torsional force and require more from the engine and damper your acceleration but give you a better overall top speed. (picture a 21 speed bike. you've got lots of torque without a lot of effort on that first gear but soon your legs(engine) are spinning a mile a minute and you're not going very fast. but shift to 21st gear and you'll start out reeeal slow but eventually you'll be movin pretty good. its the same thing )

The ratio of the gear is actually the torque multiplier, this was explained to me by a mechanical engineer. so you're taking the torsional forces of the drive shaft and whatever your diff ratio is, it's actually multiplying it by that number.
Well put about the 21 speed bike gear .
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Unread 02-21-2012, 07:26 PM   #18
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