Giving Me A Head Ache

[rhuston1]

Hey guys, have not been on for a while. Anyways I have an 06 sierra classic body style but it's 2wd. The problem with that is I want bigger tires! That's easy right?! Wrong. I thought I could just put a leveling kit and slap on some 33" mud grapplers but then I get a phone call and the guy tells me they won't fit because the leveling kits for 2wd only bring it up 2" so there is not enough clearence. so now I'm stuck because I don't know what size tire I can fit with out it rubbing. I have the stock 17" on it w/ the 2" daystar leveling kit and I need to know the biggest, widest tire I can fit in there w/o it rubbing.

[cerbomark]

 

Hahaha, I hear ya. I can t help but I feel your pain. I m trying to just buy new rim s and all the offset and backspace differeneces along with trying to match them to a wheel I like is giving me the same headache.

[Stevens03]

Pussies!

 

No more than 6" max backspacing (optimum would be 5.5"), and 285's will fit with minor trimming and leveling kit.

[cerbomark]

What about offset?

[blackout07]

What about offset?

 

 

Offset and backspacing are one in the same.

 

TO CONVERT OFFSET TO BACKSPACING:

 

For positive offset wheels: (Wheel Width +1)/2 + (offset * .03937)

 

For negative offset wheels: (Wheel Width +1)/2 - (offset * .03937)

[rhuston1]

im lost on the off set and backspacing does that require more parts or spacers?

[Northern Sierra]

on my stock 09 sierra Z71 i put LT285/70R17s and they rub slighty on the front mud flaps when turning on uneven ground.

[jnpaddison]

offset is from the centerline of the wheel to mounting hub - positive or negative , backspacing is from hub of wheel to inboard of wheel - the Dish dimension

[05silvycrew]

try a 265/70/17, that's just under 32" tall and just under 11" wide

 

or try a 275/70/17, that's just over 32" tall and about 11" wide

 

at the absolute biggest, I'd reccomend a 285/70/17, just under 33" tall and about 11.5" wide

[matt3]

My last truck had 285/70/17's on it with only a 2" leveling kit. It was also a 4x2, it didn't rub.

[vikinghogue]

A guy I work with put a 3inch lift on his 06 and he only has 265/70/17 and they look huge on there, If I remember right 285/70 would be a tight fit and probably rub

[rhuston1]

so should I just go with a 265/70/17 to be safe? Or should I be ok with a 285 with slight trimming?

[vikinghogue]

what size tires do you have on it now

[rhuston1]

what size tires do you have on it now

245/70/17

[vikinghogue]

a 245 is 30.5 and a 285 is 32.7 and a 265 is 31.6. I would roll a 285 up to your truck to see how it looks.