flyspec14

I running an 01 ECSB, 4/6 drop, & 18" wheels. My main mission is towing my 5000lb. boat. I just picked up these...



18" X 8.5" what tire size would work without alot of rub? Also, load rating & wet traction is very important. Thanks in advance

SnakeOiler

iTrader: (6)

What is your backspacing (or offset)?

flyspec14

5.25"

SnakeOiler

iTrader: (6)

Some of the other guys (with lowered vehicles) can corect me if I'm wrong. . . but I would think with that drop you would want to keep the tires completely tucked, especially if towing. With a 5.25" backspace, you are gonna be running a skinny tire (something with a section width of no more than 9"), by my calculations. That around a 225 size tire, which *might* be to skinny for an 8.5" wheel.

A 5.75" (or more) backspace would provide you with better options.

GREGGO

iTrader: (2)

I'm running an 18x8 with 5.5 backspace. So you would be 1/2" farther out than me. You could get by with a 285 depending heavily on the TREAD width of the tire you choose. The SECTION width of the tire won't be what you need for tire rub.

SnakeOiler

iTrader: (6)

Since, tread width is not the widest point of the tire, what kind of tire rub are we talking about here? I'm feeling a little lost.

02BlueStepside

iTrader: (1)

I have the same drop, 4/6. As in my case, and it sounds like yours too, I do not have optimal backspacing so a shorter sidewall tire had to be used so it did not rub. I would also suggest helper bags since you do plan to tow.

flyspec14

I am running helper bags, at least they should be installed after this week. I'm thinking like 275/45/18? I thought 5.25" backspacing was pretty optimal?

02BlueStepside

iTrader: (1)

I think a little more would be ideal, but I don't know as much about backspacing as some of the others. That tire should be fine as it is only .1" larger than what I am running and I don't rub any.