i have a 2002 dodge ram 3500 4x4 i was wondering if anyone knew how big of a tire i can go with before they would cause a problem with rubbing stock size is 235 85R16E i would like to go with something a little taller and wider but yet keep the load range E...thanks

 

i got 315x75r16s on mine. i do have a leveling kit, but i have a HEAVY bumper wich bring it back down to about stock. i havent had any problems. the 285's i had before that were great too

 

I'm in the market for a new set of tires. Currently have 235-85R 16's, too. Just want to make sure -

According to the tire calculators I use, 315-75R 16's add one and a half inches to the width per tire. So figuring tire-squat for load (more of that with an extra inch and a half of sidewall), there's going to be two inches less space between the tires mounted on the rear rims. That seems pretty close, even with the larger offset of the '02 rims.

 

the 315's do not clear very well. even with a leveling kit my 315's hit. I went to 285 75 16 and they fit perfect

 

285/75/16 will fit fine without a leveling kit. thats what i am running.

 

I just went down this road this week actually. I had Toyo Open Country ATs, size LT305/70R16s. They worked really well and no rubbing at all with a 2" leveler on the front.



This morning, I just had my local Les Schwab mount up some Toyo Open Country MTs, size LT315/70R16s on the same MT Classic II 16x8 wheels.





They rubbed the fenders a little exiting the parking lot at full lock but still seems like they'll work out just fine. The rubbing is really quite minor. Also, both of these particular tires are E-range tires.

 

Wheel back spacing is a major contributing factor on the WILL THEY FIT topic

 

thanks for the info so far, im leaning towards 285/75R16's but not sure yet lets see some pictures of some 3500 4x4s with that size tire also my buddy has 305/75R16s on his 2500 lets see some pics guys thanks.....

 

Probably didn't explain myself well.

The problem for 3500 duallies is not going to be hitting the fenders - or if so, it's going to be relatively minor.

The problem for 3500 duallies is going to be the space between the rear tires mounted on the dual rims on each side of the axle (called "offset spacing" iirc). The 285's, 305's, and 315's have wider treads and sidewalls, and as the tire "squats" while going over bumps, the sidewalls may rub together - the problem will only be worse if you carry loads. Leveling kits won't help - only the 3500 dually has this issue, and it's a serious one that requires people to check for wear rings on their sidewalls. In many states you can be pulled over and ticketed if the LEO notices your sidewalls seem to rub. Better to get a ticket, however, than have a sidewall blowout at 60 mph while towing a 30 foot trailer.

So if you think it's about how a tire looks or whether it rubs a fender - that's a 2500 issue. The 3500s require a different "set of rules".

The '00-'02 3500s have a wider wheel offset that previous 3500s, so only 2nd gen 3500s from those years can run sizes larger than 235-85R 16 without issues. But not much larger. I thought we were asking a different question - how big & wide a tire can be before sidewall rubbing between the rear tires became a problem. When I got out of this game a few years back, 235-85R 16 was the only "E" option in town....

 

yeah i unerstand that they will rub i am planning on buying spacers...thanks i want to see some duallies with bigger tires...