procomp 8.5" tire question - Ford Powerstroke Diesel Forum

 
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post #1 of 10 Old 01-10-2008, 05:51 PM Thread Starter
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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.

ROLLED as of september 4th 2010 sad day: Ford f350 superduty 7.3, chipped dont know what it is though, 4" exhaust to 5" mitres, K&N filter, 8.5" lift on 38X15.5X16.5 tires.
New project: 2000 Ford F350 lariat white 4 door short bed, big napa filter, TS 6 position from Tony Wildman, 4" exhaust, Protech cab guard 3 guage pillar. Soon to swap in 8.5" lift, Built trans with triple disc converter
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post #2 of 10 Old 01-10-2008, 05:59 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.

platinum edition F250 crewcab, 7.3 powerstroke,8 inch fabtech, 37x13.5x20 kumho m/t, 20x10 A/R teflon thug,6 FOX shocks and stabilizer, stainless toolbox, line-x, 4 inch exhaust, AEM intake, wicked wheel, Dp-tuner, Autometer C2 Gauges, kenwood in dash TV/DVD with navigation, sirius, bluetooth and back up camera, infinity and JL audio speakers, PPI amp, 08 diff cover, braided brake lines, onboard air w/ train horns,E-Z down tailgate

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post #3 of 10 Old 01-10-2008, 06:28 PM Thread Starter
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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.

ROLLED as of september 4th 2010 sad day: Ford f350 superduty 7.3, chipped dont know what it is though, 4" exhaust to 5" mitres, K&N filter, 8.5" lift on 38X15.5X16.5 tires.
New project: 2000 Ford F350 lariat white 4 door short bed, big napa filter, TS 6 position from Tony Wildman, 4" exhaust, Protech cab guard 3 guage pillar. Soon to swap in 8.5" lift, Built trans with triple disc converter
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post #4 of 10 Old 01-10-2008, 06:32 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.

*Current* 2001 Excursion "Big Black" Limited 7.3 "Tuckin" 37's waiting on exhaust so the chip can go in!

*Current* 1989 Mustang 5.0 Notchback Sonic Blue *For Sale*



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post #5 of 10 Old 01-10-2008, 06:39 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 ?

platinum edition F250 crewcab, 7.3 powerstroke,8 inch fabtech, 37x13.5x20 kumho m/t, 20x10 A/R teflon thug,6 FOX shocks and stabilizer, stainless toolbox, line-x, 4 inch exhaust, AEM intake, wicked wheel, Dp-tuner, Autometer C2 Gauges, kenwood in dash TV/DVD with navigation, sirius, bluetooth and back up camera, infinity and JL audio speakers, PPI amp, 08 diff cover, braided brake lines, onboard air w/ train horns,E-Z down tailgate

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post #6 of 10 Old 01-10-2008, 06:41 PM Thread Starter
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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.

ROLLED as of september 4th 2010 sad day: Ford f350 superduty 7.3, chipped dont know what it is though, 4" exhaust to 5" mitres, K&N filter, 8.5" lift on 38X15.5X16.5 tires.
New project: 2000 Ford F350 lariat white 4 door short bed, big napa filter, TS 6 position from Tony Wildman, 4" exhaust, Protech cab guard 3 guage pillar. Soon to swap in 8.5" lift, Built trans with triple disc converter
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post #7 of 10 Old 01-10-2008, 07:34 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.

Dads: 99 2500 Ext Cab Longbed 4X4 3.55s CTD, 5'', 47re, BHAF Outerwear Heat Sheild, Turnbuckle Wastgate, Fuel Pressure, Sucnoast Tripple Disk TC with custom vb work.
Mine: 95 Ext Cab SLT, Loaded, 5spd, 3.54s, Leveled 5'' Lift 35'' Toyos, 4'' Straight, Super B 57/66/14, Stage 2 Sticks, Stage 2 clutch, Custom Intake, Boost and EGT on the pillar.
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post #8 of 10 Old 01-10-2008, 07:54 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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post #9 of 10 Old 01-10-2008, 08:25 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.

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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post #10 of 10 Old 01-10-2008, 09:11 PM
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Hey reelytt pm me a price you would want for your 4in lift.


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