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Old 01-10-2008, 06:51 PM
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procomp 8.5" tire question

I am going to be ordering the procomp 8.5" lift here in the next week or so and i know that the recomended tire size is 37x12.5 and i know that alot of people run bigger tires then that and i was wondering if i would be able to run 38x14.5 on the truck and if i have to trim the front plastick alittle it no big deal but i dont want to order the tires to find out i cant put them on my truck.
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Old 01-10-2008, 06:59 PM
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i was running 38x15.50 swampers on weld 16.5x12 wheels with a 8 inch fabtech, had slight rubbing at the rear of the front fender and the front spoiler lip, I replaced my tires recently with 37x13.5x20 and 20x10 rims with -25mm backspacing. rides,drives great with no rubbing anywhere.
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Old 01-10-2008, 07:28 PM
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alright well i really want to run toyo mt's but they are really expensive and i found a sight that has toyo 38x14.5x16 so i think thats what im going to run them. did you have to re-gear you truck? and what else did you have to do to the truck to put the 8" lift on there? ive heard that you have to lengthen the front drive shavt and get new brake lines if you want to flex the truck at all. i will just run the stock brake lines and when i have money i will buy the lines.
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Old 01-10-2008, 07:32 PM
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I got an 8" on the X and running 37x13.50x18's no problem. The front chin is notched, but that's a common thing with lift kits.
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Old 01-10-2008, 07:39 PM
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on my previous truck(01 f250) i didn't extend the driveshaft and never had a problem. i got the one on this truck extended for free, but i did stainless brake lines on both trucks. both trucks are geared 3:73, my highway mileage actually went up with the bigger tires, what wheels are you gonna run ?
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Old 01-10-2008, 07:41 PM
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i dont know what wheels im going to run but if i can run those tires they are going to have to be 16" rims. i have 16.5's on there now and nobody really makes good tires for them.
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Old 01-10-2008, 08:34 PM
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I think you have 3.55s or something in that truck so a regear to 4.10s or maybe even 3.73s would be a nice adition.
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Old 01-10-2008, 08:54 PM
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they will fix fine im running 38/15.50/20 on 20x10 wheels on 8 inch rize lift
you shouldn't have to trim at all
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Old 01-10-2008, 09:25 PM
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3.73's are the norm for SD's.

I run 37's on a 4" lift... If you cant fit 38's on a 8" lift something is wrong.
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Old 01-10-2008, 10:11 PM
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Hey reelytt pm me a price you would want for your 4in lift.
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