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I have an information issue. I want to put 35 X12.5/17 or 18. I have the 2500 HD diesel with a level kit. I'm being told I have to go with 6"lift for that to happen. I would like the tires to go about an inch beyond the fender. All I hear is," they will rub". I'm also being told that may not be enough and that every truck is different. I find that hard to believe. A truck is a truck to me. I have talked offsets and rim with and have no definite answer from anyone. Tires and rims are lot of money to me, especially if I can't return them. I'm obviously at my wits end. Can ask for a little help from those you who are not like these down here that just want to make a buck? Thanks being interested in helping.
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More than likely they are right. You will need a six inch lift to fit 35's. And you may rub a little bit but it's nothing some VERY minor cutting won't fix.
I remember before I did the SAS when I installed my 6" lift Rough Country said it would allow the use of 33's. I had 35's and they didn't rub when they were on the factory wheels. Later I put wider wheels and 16" wide tires and I had to trim a little.
The back offset makes all the difference in the world, the more the tire sticks out, the more it rotates from front to back when turning. If you do need to trim and you have the factory wheel well flares I can show you a way to do it with very little trouble.
I did tons of research before buying the wheels I have now. My 02 Tahoe has the factory installed fender flare trimwork and I wanted the outside "edge" of the tire to be flush with the outer edge of the flare trim. I knew what the distance was from the wheel mount hub to the outside of the flare, but wasn't sure what offset I needed to get the results I needed.
Delimma solved!
All you need to do is input your factory data into the first set of spec windows (tire size, wheel diameter, width and offset)...then input in the second set of spec windows the size you want to use. Start out by picking a random offset you think may be correct for the second set up.
Once you do this, it will give you every dimension you need to ensure proper clearance. Also, in the tables below the two diagrams, you'll find more detail...including what the difference it is from the first set-up data. Adjust the offset in the second set-up until you get what you're looking for.
In the end, based completely on using this site, my results were perfect. Even when my wheels and tires arrived at the offroad place that did my leveling kit, and the techs there didn't think they would fit. Every time I go in there they comment on how they never thought the set-up would work.
6" would be plenty cause my dad has a 2003 GMC 2500HD an it only has a 3" body lift an he runs 35x12.50 Mud terrains just trimmed the front bumper alittle bit....
Who is right about lifts
Wheel/Tire calculator
