285-70/17 Tires On A Stock Height Gmt900?

Spurshot · August 17, 2009

I'm moving this over to this forum since the Suspension forum attendance seems light.

Thinking of buying some tires for the new truck before the hunting season. I really haven't raised the truck (Bilstein 5100's at the second notch up about 3/4" lift).

Was just thinking about getting either stock size 265-70/17 (31.7 dia x10.7 sec width) or preferably 285-70/17 (32.8 dia x 11.4 sec width, 9.1 tread width). It looks like there is just enough clearance for a 285-70. Anyone have any direct experience?

Thanks

Chuck

cliobogger · August 17, 2009

you MIGHT rub...but id think you would be fine. from what ive seen of the nnbs im pretty sure they can fit the 285 tire.

03blackz71 · August 17, 2009

they will fit. There is a member that had them on his truck with stock rims and stock height with no issues and he used it offroad alot. I just can't think of his name at the moment. His truck is a gray GMC sierra crewcab and I think he is in canada.

WilliamsVMAX · August 17, 2009

Was just thinking about getting either stock size 265-70/17 (31.7 dia x10.7 sec width) or preferably 285-70/17 (32.8 dia x 11.4 sec width, 9.1 tread width). It looks like there is just enough clearance for a 285-70. Anyone have any direct experience?

Thanks

Chuck

Hey, you won't have any trouble putting a 285 tire on a stock GMT900 truck When I bought my truck I had 285's put on before it left the dealer and had no issues at all.

WilliamsVMAX · August 17, 2009

Was just thinking about getting either stock size 265-70/17 (31.7 dia x10.7 sec width) or preferably 285-70/17 (32.8 dia x 11.4 sec width, 9.1 tread width). It looks like there is just enough clearance for a 285-70. Anyone have any direct experience?

Thanks

Chuck

Hey, you won't have any trouble putting a 285 tire on a stock GMT900 truck When I bought my truck I had 285's put on before it left the dealer and had no issues at all.

Zembonez · August 17, 2009

Only time it MIGHT rub is backing out of a tight driveway and turning full lock. Even that should be minimal (and worth it!).

Spurshot · August 17, 2009

Thanks guys. I'll go with the 285-70/17. For such a big looking openning in the fender, they sure are tight inside the well when turned. The Cepek FC II in a load range D look promising to me. About as aggressive a tread as I'm willing to go. I would almost buy another set of rims to just run them for the hunt season and put street tires back on the rest of the year, but sh%t a stack of truck tires is a pile I'm not looking forward to storing all year.

Ron505 · August 17, 2009

I'm lovin my DC FCII's.... good choice.

coydog13 · August 18, 2009

Same set up I'm looking at doing on mine as far as tires go. I want something a little bigger, but not huge that I'm going to need a huge lift to accomplish.

The rough country leveling kit is installed Wednesday. Yes, I'll take some before and after's! and I think 07blackz71 set up with the leveling kit/body lift is the direction I'm leaning to lift a little bit more. Don't have all that cash for a good lift, although that would be the ideal set up.

rancher400mudder · August 18, 2009

I'm lovin my DC FCII's.... good choice.

what size are those tires and rims?

jgold121 · August 18, 2009

how much road noise do you pick up on those DC's?

AgDoctor · August 18, 2009

i have the cooper sst 275/65-18 on mine and they scrub on the passenger fender well on full lock and in reverse, but this could be the enormous amount od mud causing the cheap plastic fender wells to sag! i figure if they scrub long enough they will wear a hole wherever it is that they are scrubbing and i will ot have to listen to that racket anymore.

cerbomark · August 18, 2009

Let us know for sure. without a leveling kit my source though there would be a problem.

cc1999 · August 18, 2009

I was about to ask this same question, except for I have GMT800 Z71.

I have a 2006 Z71 that came with same 265/70/17s that some of the 900s come with, do you guys think I will need a lift some kind to clear them. I can probably get a 1/2" or so out of the bars if need be. I am planning on going with an aftermarket 17x8 rim with 4.95 back spacing. The tire I am wanting to use is a 285/70/17 BFG ATKO. This 285 tire 1" taller than stock about 1/4" wider than the stock tires. Not sure what the stock back spacing is on the rims, anyone know?

sc4808 · August 18, 2009

Let us know for sure. without a leveling kit my source though there would be a problem.

I was about to ask this same question, except for I have GMT800 Z71.

I have a 2006 Z71 that came with same 265/70/17s that some of the 900s come with, do you guys think I will need a lift some kind to clear them. I can probably get a 1/2" or so out of the bars if need be. I am planning on going with an aftermarket 17x8 rim with 4.95 back spacing. The tire I am wanting to use is a 285/70/17 BFG ATKO. This 285 tire 1" taller than stock about 1/4" wider than the stock tires. Not sure what the stock back spacing is on the rims, anyone know?

285's fit on the old body style without issue, I have been running them for years on my 2003 Sierra