33s on a 1st gen

I'm debating if I should go w/ 255s, 285s, or 295s. I'm currently running Hankook Dynapro AT/M in 265/75 and my tires do rub at full lock. My current wheels are 16x8 with a 4 5/8 backspacing and 3.175 offset.

I've done some research on the subject, please don't assume that I have not. What my research is telling me is that my tires currently rub becasue of the 4 5/8 backspacing. Am I correct in assuming this?

I don't like wheel spacers, so at this point am trying to avoid that as an option. That being said, would a tire in 255/85 clear the frame with my current bs?

Without getting deep into the other issues with clearing a 33" tire on our trucks, which of the three (255, 285, 295) would be easiest to mount with minimal issues?

Sorry if I sound like a total noob - I am. Thanks for reading.

 

255 will clear the easiest

-But-

You may have some frame rubbins when articulating. Also, you may or may not have a little bit of inner fender to pound/trim. Both of the wider sizes will require less backspacing or spacers and probably some work to make them not rub.

From what I understand, with a factory wheel, the 255/85 is arguably the best size one can get(for a 1st gen). Your wheels are basically factory spec, minus the 8 inch width. That being said, I would stick to the 255.

Edit-Not entirely sure what to say about the offset of your wheels...hopefully a more educated individual will chime in.

 

Hey man,
Thank you for replying. I didn't realize that my current wheels were close to oem in specs, I'm the 3rd owner and the truck came with these wheels.

Hopefully I can get a few more responses before I make my purcase.

 

I believe oem wheels are 4.5 backspacing?

I have 285/75/16 and they do rub at full crank on the frame and plastic on a bunch of places...

I cut a bunch and grinder a bunch w/ a 1.25 wheel spacer... I'm not happy about the spacer either but at least no rubbing now

 

'Sup @snowboard704 ,
So you'r running an aftermarket 16" wheel with similar backspacing as mine? What about your offset? I see you're running 33 bfg KO2, what size exactly 285 or 295?

 

So they are ultra wheels 16x8. 4.5 backspacing with a -1 offset. I mainly rubbed plastic unless I was at full turn then it was slight frame.

Threw the wheel spacers on (1.25 spidertrax) an didn't run frame anymore but rubbed more on the cab area so took a flap wheel & grinder to that. (Will eventually be doing some sheet metal work in there) .

I have the 285/75/16 ko2 all terrains. Only thing I don't like about them is that they only come in load range e for that size an it's kinda overkill for the weight on our trucks but... still like them regardless. Been wheeling many times with them an no chunking etc

 

I also have just installed new 16x8 ultra rims with 285/75 BFG KO2 tires and they rub on frame at full turn. Thay also rub slightly on upper control arm since I have let air pressure down to 45lbs to help smooth out ride. Truck has a 3" toytec suspension lift. Snowboard704 I was wondering what spacer you installed from spidertrax. Are they hub centric or not. Having trouble finding a sure answer which set to install. I am leaning towards the hub centric even though they are more expensive. Totally agree with you on load E rating of tire for our size truck.

 

I believe my rubbing issue is from new rims having the wrong back spacing. factory rims are 4.5 on 7" inch rims and when I purchased new 8" rims I should have gone with a 0 offset and 4" back spacing on the 8" rim to allow for a 11.5 inch wide tire as apposed to 10.5 inch wide old tire. The rims I wanted only came in +10 offset which puts the back spacing at 4.5 to 4.8 leaving my tires 1/2 inch from upper control arm. they only rub slightly on frame at full crank and just started rubbing on upper control arm since I lowered the air pressure.

 

Yea spacers are kinda a grey area as lots of people avoid them and I would have if i didn't rub on the frame. I got the spidertrax hub centric ones because it's better not to cheap out on a important peice lol

I run my tire psi at about 36 on road an have no running on uca even when it was stock. My ultras are 16x8 4.5 backspacing an -1 offset... After some cutting and grinding I don't rub anywhere

 

Snowboard704

Thanks for the input on spacers. Going to call today and order. Maybe even lower air pressure in tires now that I know someone else runs that low on the road

 

I fit 33s on my gen 1 with a 1.5 inch body lift. And unless you wheel hard, that's all you need to do. ( with a bit of hammering). really minor
https://youtu.be/D4Hwl4xz5ts