Originally Posted by Slick Dakota

Watch these videos..

http://www.monkeysee.com/play/14464-...eels-and-tires

Well since I could not find the back spacing or offset for my stock 18x8 wheels I pulled the tire off and measured myself just to be sure so when I go shopping for my after market wheels and these are the numbers I got...



To start these wheels that the manufacture lists at 18x8

this will help you determine what kind of wheel to buy and what kind of tire you can run on your new wheels..

Bolt pattern which all wheel manufactures list for our trucks is 5 5x5 which is 5 lug by 5 1/2" or 5.50 or 5x139.7

Back spacing on these wheels are 5 1/4" or 5.25

Offset for these wheels are positive offset of 1 3/8 to 1 1/2 or right around 38 millimeters

what seems to be the norm the more the the after market wheel gets closer to the centerline of the rim or 0 offset or in the negative offset, it reduces the tire size you can run because of it pushing the tire out away from the truck and then run into rubbing issues...

Here is a video to show you how to measure to find out how big a wheel and tire you can run on your truck.. Move the video along to 4min 55sec into it and there is what you want to watch..

I hope this video stays up since my internet speed is not fast enough to down load the video I have of this to photobucket..Cya Slick

http://www.spike.com/full-episode/mu...rack-car/34568

Here is where it shows you how to measure your wheel if you feel the need..

https://www.rsracing.com/tech-wheel.html