I did a search and came up with squat. Anyone running 315/70R17's on their trucks? All the leveling kits say that you can fit a 35 inch tire. My kit will be going on in a week or so and I am looking at new tires. I wasn't going to go all the way up to 315's but I can make myself a deal on some that I may not be able to pass up.

The dealer said they could flash the truck to them, so speedo and such is not an issue.

How do they run with the 315's? I have the 5.7 which seems to have enough power to run them. Any thoughts, issues etc?

 

the only concern i would have is with the width I have a set of 305/40R22's on my truck in the summer and i need to run spacers to stop them rubbing

 

315/70r17 = 34x12.4x17 so there not 35's (http://www.dakota-truck.net/TIRECALC/tirecalc.html)

check out this thread
https://dodgeforum.com/forum/4th-gen...5s-thread.html

 

Yeah, not quite 35's but the 315 is generally considered the metric equivalent of the 35.

And thanks, that thread is exactly what I was looking for..... great info!

 

I know its way late. But, for the sake of others searching, I run 315/70R17 on mine. They rub the sway bar at full lock. HOWEVER, my stock spindles are worn to the point that if all the metal that was supposed to limit my steering were present, I don't believe it would rub.

I wish I had a picture to explain. But, basically 70,000+ of parking the truck has worn of a fair amount of the spindle that acts as a "steering limiter" (the actual point where the spindle's contact with the lower control arm stops the wheel from turning further).

Also the calculator I used put the 315/70R17 at 34.4" I know its not even a half inch of difference from what was posted above, but every inch counts (that's what she said) Can I that's-what-she-said myself?

Also to further reduce the chance of confusion for new readers. 315, by itself, has does not indicate how tall the tire is. Rather it indicates how wide, in millimeters, the tire is (i don't know at what point. rim/tread). The second number, 70, is how tall the sidewall is in relation to its width (called the aspect ratio). This added to the rim diameter, R17, give us the theoretical overall diameter of the tire. Now all we have to do is factor in tire pressure, tread wear, and weight of vehicle to find out how tall your tires will actually measure on the truck. So after its all said and done, I imagine you could have a very large range of measured diameters, varying more than an inch.