I just bought a set of 325/65-18(35x13.5-18) ATZ's mounted on 18x10 Classic II's(4.5" B.S.). I currently have the 2" skyjacker springs in the front, and was hoping to only have to go up to the 4" springs in the front and 2" in the rear. I'm not sure if the tires will clear the front of the wheel well opening without rubbing. I show the truck so I don't want to trim anything off the moldings or the sheet metal. I wouldn't mind putting on the 6"fr/4"rr, I'm just not sure if the 35's would then fill the fender well enough. Can some of you guys let me know how much lift your running and what size tire you are clearing, your help is appreciated, I want to buy the right lift the first time.

Thanks,
Tater

 

I am currently running 315/75/16 (35x12.50x16) on Alcoa 16x7.5 aluminum rims (The true, measured size of my tires are 34x10.50) but I have no lift. I trimmed a little bit of the black fender flare moldings to get them to fit. I get a little rubbing on the pitman arm when I turn all the way to the right and if I go through a dip or gutter too fast the tires will barely rub the inside edge of the molding but other then that I am good (I will get some pictures for you tomorrow and you can see how it fits in the wheel well). I think your idea of giving the truck and overall lift of 4" would be good. Unless you off-road through trails or tight places a lot, then I think you would be regretting the height. Keep in mind that just going the larger tires would raise the truck too. So if you did a 4” lift, and go 35” the TOTAL height of the truck is going to be raised about 5-6” higher than what it sits now.

A good way to see what it would look like is mounts one of the wheels on the truck and measure from some common place (I use the top flat edge at the top of my wheel opening) then jack it up by the frame and keep measuring from that same point until it has raised as many inches as you desire (like 4” if you plan on doing a 4” lift). That will show you almost exactly how the set up will look (and you will be able to look and see possible rubbing problems), plus you can turn the wheel and see if there would be any rubbing that way. It is the best way I have found to simulate a lift and bigger tires without actually doing it.

I do a lot of trail driving with my truck so the key for me is as big as tires as I can to get the differentials off the ground, but stay as low as possible so my center of gravity stays lower. That is why I plan on doing only a 2” lift when I go 37” tires.

I hope this helps, and as I said, I will get some pictures up for you tomorrow if you think they would help.

 

Thanks for the help Ira, I did mount the front and jack the truck up as you said before I started the thread but jacking the truck and arching the spring lets the axle move forward a little(front bolt is stationary so rear shackle swings down and to the front). Its hard to get a true idea of where the tire will be with new springs.

 

https://www.dieseltruckresource.com/...=46844&cat=500

Sorry it took so long. I forgot mid-terms are coming up… These are some old pictures, I will try and get some new ones.

Here are a couple of pictures of my truck on 315x75x16 which is the same as a 35x12.50 (My tires actually measure 34x10. You can see on the front if it flexes much the tires will rub on the inside of the fender, but not enough to be a concern for me and what I do. As you can see from the one picture the rear tire actually stuffs up into the wheel well quite nicely when it flexes. Again, this is stock height. The only suspension modification I have done is I put one leaf in each of the front spring packs to make the truck sit level again.

the three pictures that are waiting to be approved (if they have shown up, the ones where the truck does not have a shell on it) are of my truck on 36x12.50x16.5 Military tires. Their true size was about 35x11.50 and they were mounted on 16.5x8.75 rims. A little more rubbing because of the added height and width, but still fit very nicely on a stock height truck.

I hope these help. Sorry it took so long.