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39.5x18x15 super swampers on a 15x10 rim

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Old 02-05-2007, 12:59 PM
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Default 39.5x18x15 super swampers on a 15x10 rim
39.5x18x15 super swampers on a 15x10 rim? What do you guys think? Plus what rearend gears should i use for this tire size with an overdrive tranny?
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Old 02-05-2007, 01:03 PM
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I would go with at least a 12" rim. Please post what kind of truck and some more info about the vehicle.
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Old 02-05-2007, 01:46 PM
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It's a 1997 2wd Chevy 1/2 ton 350/auto 5 lug. 12" custom lift
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Old 02-05-2007, 04:28 PM
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at least a 12 inch wide rims 4.56 gears, some type of shift kit
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Old 02-05-2007, 04:30 PM
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a 18" tire on a 10" rim dont exactly sound right

4.56 gears minumum maybe 4.88s
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Old 02-05-2007, 05:23 PM
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12" width rim and 4.88 gears. what do you plan on doing with it? showing or off roading?
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Old 02-05-2007, 06:30 PM
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A 39.5" tire is gonna be Hell on those 2wd front parts. You'd need at least 4.88 gears; and if you plan on using it very often you might want to look into changing the rear end to a 14 bolt with outers redrilled to a 5 lug to match your front.
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Old 02-05-2007, 06:36 PM
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Originally Posted by whitesmokels1
custom lift
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Old 02-05-2007, 06:48 PM
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if its driven much he will definetaly need to upgrade the front axle/diff.

the stock 1500 parts start to fail routinely when you go much over a 35" tire
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Old 02-05-2007, 06:55 PM
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Wow, no way I would put the big of a tire on a 10" rim. Defiently need a 12" rim no higher than a 4.88 gear I would think.
You will defiently start to break some stuff on the front if you drive it at all.

Good luck with it. Do you have any pics?
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