Tire and wheel fitment guide for 04-08
03-14-2011, 10:52 AM
#401
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Location: NY
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really!? damn.
I just mounted 305-55-20 on 20's for my 05 4x4. Waiting to put my 2.5" and rear block and rims all on at the same time. i got the trail grapplers but they are so massive i am worried now...
I just mounted 305-55-20 on 20's for my 05 4x4. Waiting to put my 2.5" and rear block and rims all on at the same time. i got the trail grapplers but they are so massive i am worried now...
03-16-2011, 07:36 PM
#403
I have an 07 FX4 SCREW . I just got a set of wheels for a great deal ($225 for all 4 brand new in boxes). They are 18x10" M/T Classic II s . They have a 6" backspacing . I am going to lift the truck . I just want to know what size lift is needed to run a 35 12.50 or a 37 12.50 with these rims . I would like to know both so I can decide what to do . Thanks .
03-22-2011, 05:55 PM
#404
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My dad has a stock 2007 F-150 other than a 2.5 in leveling kit and 35x12.5x18 M/T baja MTZs on american racing atx series artillary rims and the rub vary bad.i was wondering if a 6 in suspension lift would clear it enough so it wont rub.
Last edited by nickpequignot; 03-22-2011 at 06:03 PM.
03-22-2011, 06:32 PM
#405
BAMF Club
^6" will easily clear 35s. You can tuck 35s with a 2" level if you run stock backspacing
03-25-2011, 05:02 PM
#407
LONESTARBEAST
This is for 2004-2008.
On a stock truck without leveling kit you can run 33X12.5" tires if it is a 4WD and 31X12.5" tires if it is a 2WD, using stock wheels.
On a leveled truck(2" kit and larger) you can run 35X12.5" tires on a 4WD and 33X12.5" tires on a 2WD truck, using the stock wheels.
Using aftermarket wheels you can run 35s on a 4WD if the wheels follow these guidelines:
-For an 8" wide wheel the backspacing is 5.5 inches.
-For and 8.5" wide wheel the backspacing needed is 5-6 inches.
-For an 9" wide wheel the backspacing is 4.5-5.5 inches.
If the wheel specs are not listed about you will more than likely have to run 33s or even smaller to avoid too much rubber and trimming. These specs are the basics for tires fitting well but you could run 35s if the specs are very similar but you will face bad rubbing.
For a 2WD truck and after market wheels you can run 33s with wheels that fit withen these specs.
-For an 8" wide wheel the backspacing is 5.5 inches.
-For and 8.5" wide wheel the backspacing needed is 5-6 inches
-For an 9" wide wheel the backspacing is 4.5-5.5 inches.
If the wheel specs are not listed about you will more than likely have to run 31s or even smaller to avoid too much rubber and trimming. These specs are the basics for tires fitting well but you could run 33s if the specs are very similar but you will face bad rubbing.
Remember that these are the basics to running aftermarket wheels and tires, certain tires might not rub but others might because of aggresive sidewalls.
These specs should work for most people and instances but if you are worried about fitment get the tire shop to mount the tire on the wheel and put it on the truck then turn the wheel to full lock in both directions to see and possible problems. If the tires you plan on running aren't 12.5 inches wide you still might be able to run 35s because of that reason, for a 4WD and some aftermarket wheels or 33s for a 2WD. It's best if you can find wheels that are a happy medium between the two backspaces for the 8.5" and 9" wheels because you will face more rubbing if you go for 6" of backspacing on a 8.5" wheel instead of 5.5 inches that's right in the middle.
For those who are curious. The stock wheels(17 and 18") are 7.5 inches wide with 5.5 inches of backspacing. The bolt pattern is 6X135mm.
Big thanks to PawPaw on this one.
If you have any instances where you find that these specs haven't worked for you please let me know and I'll make the appropriate changes, please PM so I will see it.
Hope this helps.
On a stock truck without leveling kit you can run 33X12.5" tires if it is a 4WD and 31X12.5" tires if it is a 2WD, using stock wheels.
On a leveled truck(2" kit and larger) you can run 35X12.5" tires on a 4WD and 33X12.5" tires on a 2WD truck, using the stock wheels.
Using aftermarket wheels you can run 35s on a 4WD if the wheels follow these guidelines:
-For an 8" wide wheel the backspacing is 5.5 inches.
-For and 8.5" wide wheel the backspacing needed is 5-6 inches.
-For an 9" wide wheel the backspacing is 4.5-5.5 inches.
If the wheel specs are not listed about you will more than likely have to run 33s or even smaller to avoid too much rubber and trimming. These specs are the basics for tires fitting well but you could run 35s if the specs are very similar but you will face bad rubbing.
For a 2WD truck and after market wheels you can run 33s with wheels that fit withen these specs.
-For an 8" wide wheel the backspacing is 5.5 inches.
-For and 8.5" wide wheel the backspacing needed is 5-6 inches
-For an 9" wide wheel the backspacing is 4.5-5.5 inches.
If the wheel specs are not listed about you will more than likely have to run 31s or even smaller to avoid too much rubber and trimming. These specs are the basics for tires fitting well but you could run 33s if the specs are very similar but you will face bad rubbing.
Remember that these are the basics to running aftermarket wheels and tires, certain tires might not rub but others might because of aggresive sidewalls.
These specs should work for most people and instances but if you are worried about fitment get the tire shop to mount the tire on the wheel and put it on the truck then turn the wheel to full lock in both directions to see and possible problems. If the tires you plan on running aren't 12.5 inches wide you still might be able to run 35s because of that reason, for a 4WD and some aftermarket wheels or 33s for a 2WD. It's best if you can find wheels that are a happy medium between the two backspaces for the 8.5" and 9" wheels because you will face more rubbing if you go for 6" of backspacing on a 8.5" wheel instead of 5.5 inches that's right in the middle.
For those who are curious. The stock wheels(17 and 18") are 7.5 inches wide with 5.5 inches of backspacing. The bolt pattern is 6X135mm.
Big thanks to PawPaw on this one.
If you have any instances where you find that these specs haven't worked for you please let me know and I'll make the appropriate changes, please PM so I will see it.
Hope this helps.
03-26-2011, 11:21 PM
#408
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Join Date: Mar 2011
Location: Nova Scotia, Canada
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I just recently bought a 2005 Ford supercrew XLT and absolutely love it! I'm looking to beef it up a little bit and bought a set of 18x9 rims and want to put on a set of BFG's All Terrain 305/65/R18 on them. I know in this post it says you can put a set of 33x12.5" tires on a stock 4x4 without rubbing but i'm still confused, as the 305/65/R18's are a 33.6 inch tire, so am i going to need a leveling kit for the truck? or would i get away with putting these tires on?
I did read through this entire thread but it seems to be a bit confusing...sorry for repeating the question, help would be awesome!
I did read through this entire thread but it seems to be a bit confusing...sorry for repeating the question, help would be awesome!
03-27-2011, 09:50 AM
#410
DIY
Wheel Offset: Distance between wheel mounting surface where bolted to hub of drum and centerline of rim. Determines vehicles "track" or distance between tires on each axle. Keep the wheel offsets as close to original as possible to avoid steering difficulties or wheel bearing fatigue.