Tire Recomendation

yv1650c · July 5, 2009

Hi, I'll get some Wheels 20inches OEM from my Dad's Avalanche, so I want to put 33in(diameter) tires. I prefer to go BfGoodRich AT. What's the perfect tire size to go 33in diameter and not oversize?

I only have installed RC leveling kit.

thank you..

Spurshot · July 5, 2009

For off-road, you'd be ahead by going with a 17-18" wheel that would give you more sidewall cushion and less likely to bend/crack a wheel.

But back to your question, BFG ain't my choice for perfect. There's a lot of great choices out there that I think you'll like better than the BFG, dependant on what your going to use them for.

Matt_ · July 5, 2009

275/60/20 is the size you need.

And i agree, there are much better tires than the BFG's IMO as well.

24v · July 5, 2009

Hi, I'll get some Wheels 20inches OEM from my Dad's Avalanche, so I want to put 33in(diameter) tires. I prefer to go BfGoodRich AT. What's the perfect tire size to go 33in diameter and not oversize?
I only have installed RC leveling kit.

thank you..

305/55/20. That is 33x12.5 and they make that size in the All Terrain.

Matt_ · July 5, 2009

he'll probably have to trim with the 305/55/20s due to the width (i had to trim metal with my 3" body lift).

most guys run 275/60/20 with their leveling kits and avoid rubbing issues.

24v · July 5, 2009

he'll probably have to trim with the 305/55/20s due to the width (i had to trim metal with my 3" body lift).

most guys run 275/60/20 with their leveling kits and avoid rubbing issues.

I guess I am not most guys. 305/55/20 Nitto Terra Grapplers with CCM leveling kit, no trimming.

As for you having to trim metal, it could be due to your aftermarket wheels. Maybe the BS is not the same as the factory GM wheels?

hey.brad · July 5, 2009

Hi, I'll get some Wheels 20inches OEM from my Dad's Avalanche, so I want to put 33in(diameter) tires. I prefer to go BfGoodRich AT. What's the perfect tire size to go 33in diameter and not oversize?
I only have installed RC leveling kit.

thank you..

305/55/20. That is 33x12.5 and they make that size in the All Terrain.

+1 i run those tires, with a leveling kit, however they rub ever so slightly on the plastic, when fully cranked

Matt_ · July 5, 2009

The main reason i had to trim metal was because of the actual measurement of my tires (and i do have a +18mm offset instead of the OEM +30mm)

If you get a set of 305/55/20s that measure big, even with stock wheels you'll has some rubbing. If you get a set of 275/60/20s that run big, you'll probably be OK

24v · July 5, 2009

Well, I'm not so sure that my Nittos measure small and they work great. Here are the actual tire specs off of each manufacturers website as measured on a 9.5" wheel.

Nitto - 12.4" width, 33.4" Diameter

BFG - 12.6" width, 33.07" Diameter

Mickey Thompson ATZ's - 12.5" width, 33.4" Diameter

Looks to me like the BFG's are slightly shorter than your tires, and mine. They are .2" wider than mine, which would put .1" more on the inside, but I doubt that will be much different.

Which 305/55/20's have you tried on your truck with factory 20's and a leveling kit?

Matt_ · July 5, 2009

305/55/20 ATZs with a 3" body lift

There are plenty of people with 275s and 305s that'll chime in with their respective tire makes/models and how they fit.

24v · July 5, 2009

305/55/20 ATZs with a 3" body lift

Right, so your frame is lower in the front than mine, and the original poster's frame, and your wheels are 1/2 inch wider with 1/2" more offset. He asked for an apple, and you gave him an orange for an answer.

Matt_ · July 5, 2009

Hi, I'll get some Wheels 20inches OEM from my Dad's Avalanche, so I want to put 33in(diameter) tires. I prefer to go BfGoodRich AT. What's the perfect tire size to go 33in diameter and not oversize?
I only have installed RC leveling kit.

thank you..

305/55/20. That is 33x12.5 and they make that size in the All Terrain.

+1 i run those tires, with a leveling kit, however they rub ever so slightly on the plastic, when fully cranked

305/55/20 ATZs with a 3" body lift

Right, so your frame is lower in the front than mine, and the original poster's frame, and your wheels are 1/2 inch wider with 1/2" more offset. He asked for an apple, and you gave him an orange for an answer.

Sounds like I gave him a good opinion based on your response that YOU RUB, even 'ever so slightly'.

What does my setup have to do with me answering his question with a logical and JUST AS CORRECT answer as yours? Maybe "not too oversized" to some of us mean NO RUBBING.

I said, 275/60/20 is the best size IMO... that's not "oranges". You rub with 305/55/20... so what if he gets a 305/55/20 that measures even bigger than yours? Or... maybe he doesn't want to be embarrassed with a rub/scrape sound when pulling into a parking lot that has an incline at the approach.

PS: And just so you know, when it comes to rubbing on plastic and body panels, the location of the frame doesn't matter. If there were issues with these trucks rubbing frame... then it would matter. (just for future reference so you know what you're talking about)

24v · July 5, 2009

Sounds like I gave him a good opinion based on your response that YOU RUB, even 'ever so slightly'.
Ummm, dude, go back and reread who made that response, last I checked my alias is not hey.brad

What does my setup have to do with me answering his question with a logical and JUST AS CORRECT answer as yours? Maybe "not too oversized" to some of us mean NO RUBBING.

He was asking for help with factory wheels, not .5" bigger, and .5" more offset wheels. Also, he was asking for an opinion from people with a leveling kit. Once again, you do not have that either.

I said, 275/60/20 is the best size IMO... that's not "oranges". You rub with 305/55/20... so what if he gets a 305/55/20 that measures even bigger than yours?

I gave you examples of 3 different tires, and their actual measured size, and they were all damn near exactly the same size.

PS: And just so you know, when it comes to rubbing on plastic and body panels, the location of the frame doesn't matter. If there were issues with these trucks rubbing frame... then it would matter. (just for future reference so you know what you're talking about)

I'm glad you are trying to help me understand what I am talking about. Now maybe you could explain to me WTF you are talking about. You said, in your original post in this thread, "i had to trim metal with my 3" body lift". So WTF does that have to do with plastic and body panels? Are you telling me you cut your fenders to fit your tires?

Look, the point of the matter is this. You are butthurt because you had to cut metal off of your truck, and lift the body 3" to run the same size tires as I. Yet all I had to do was add an $85 leveling kit, and all my sheetmetal is still in tact. Don't cry about it, just learn how to research next time before making any big purchases, you know like buying tires twice.

Matt_ · July 5, 2009

lol what are you talking about? I knew what i was going to have to trim with my setup. The metal is the BODY PANEL, so that's "wtf" is has to do with it

Chill out there buddy, i dont see what you're all upset about.

FACT: I recommend 275/60/20s

FACT: You recommend 305/55/20s

FACT: YOU RUB

24v · July 5, 2009

To the original poster, here is the better answer to your question. If you want to be really safe, you can run the narrower tires, and have a very very slight chance they may rub. Or you can live life on the edge like some of us, and run the wider, better looking, tire. It may rub very slightly on the inner plastic in the fender, and if that really bothers you, you could trim it a very slight amount, or heat it up and move it away from the tire.

Or you could be like sk1er18 and buy wheels that don't fit right, and cut metal off of your truck to get everything working, because a little rub on the plastic sure is a hell of a lot more embarassing that admiting to chopping up the sheetmetal, right?