Hey guys. Ive decided to go with Toyo A/T 285/65/R18s and 18x9 XD Hoss. For a leveled LMM and running these tires, is the -12 or 18 offset recommended? Or which would have the least amount of rubbing issues if any?

I have the 20x9 in a hoss with 33's and it just doesn't work well with the 4.5 backspacing. It hits the inner fender pretty bad.I believe the 5.7 backspace would be the ticket. Not sure what offset that would be though.

thanks for the reply. I believe the Hoss wheel that has a 5.7 inch backspacing is an 18mm offset.

From what I've heard and seen 18mm is the way to go on a stock or leveled LMM. The negative offset will make the wheel and tire stick out too far and will most likely rub unless lifted with a larger lift.

5.7 inch of backspacing just seems like a lot to me. maybe thats just me though. does anyone have this type of backspacing and have any problems on a leveled LMM. I've also looked at the XD diesel wheels that have a 5 inch backspacing and 0mm offset. Anyone know which would work better or have this setup?

5.7 inch of backspacing just seems like a lot to me. maybe thats just me though. does anyone have this type of backspacing and have any problems on a leveled LMM. I've also looked at the XD diesel wheels that have a 5 inch backspacing and 0mm offset. Anyone know which would work better or have this setup?
Assuming a 9-inch wheel width, the "leveled" NBS needs a minimum backspace of roughly 5.75 inches ... mine is actually 6" backspace to clear 33" tires. See my NBS Tire garage (linked in my sig) for a lengthy description.

The front wheel swing arc causes the tire's outside rear shoulder to contact the rocker panel ... actually the bottom-fender. Tread shoulder design can exacerbate (or moderate) fender interference.

Tucking the tire underneath the fender pushes that contact point farther inside, and avoids contacting the lip of the front fenders. Tucked far enough under, that outside shoulder only hits the plastic liner. But when shouldered out from the fender (as with zero offset), the tire's swing arc can touch the exterior fender. That makes a 4" lift the only option for exposing the tread on 33s. *Hope it helps. *;)

http://www.dieselplace.com/forum/garageimage.php?do=full&p=47484&d=1198442894

Thanks HookedOnDmax for clearing everything up for me! I know what I need to be looking for now!

+18 is what u need had them on my 07.5. check garage

+18 is what u need had them on my 07.5. check garage

Yeah I really like your wheel and tire combo. I keep hearing 285's are the widest I should go on a leveled truck w/out trimming. How did your 305's fit? Did you have to do any trimming or having rubbing issues?

yes i had to do a little trimming. the ATZ 305 was a little shorter. it measures up to 32.6'' tall thats why i thought i would try it. it worked and i put the same thing on my new truck.

I am running that exact wheel with the same tire size of 285/65/18. You will need to go with the +18. That is what I am running and I have slight rubbing with the torsion bars maxxed out.

I''m running 20x10 Hoss wheels with +18 backspacing on my 08 LMM with 305/55/20 Nitto Terra grapplers. Truck is leveled with torsion keys and the only running I have is on the front sway bar barely at full lock holding it over. If I don't hold the steering wheel at full lock it never rubs.