Offroad Trailblazers and Envoys

Plan for new tires (18 inch wheels)

Need new shoes? This is the place to discuss.

by oefootball_70 » Sat Jan 02, 2016 12:48 pm

Hello OFFROAD TB, this is the first thread that I have started. I recently purchased a 2 inch lift from a fellow member here, and I'm looking forward to joining the elevated crowd. Being more of a budget build, I am going to be keeping the factory wheels (18's) partially because of cost, the other factor is that I really like the look of a lifted vehicle on factory wheels. As you can see with my last build.

Image


After researching, I am a little confused on tire fitment, and would love to pick a few of your brains. A 30 inch tire fits with no lift, but apparently only a 31 fits with 2 inches of lift? If my figuring is correct, a 32 should fit with 2 inches since it only adds an additional inch on each side of the tire. If am correct in this thought process, I am looking at purchasing 275/70/18's and 1.5 inch spacers.

It should be noted, that the largest amount of "off-roading" this vehicle will see is the curb that I cross to pull into my driveway. I know that flex plays a factor in tire size, but if it fits on the ground, I shouldn't rub otherwise.

Should I be alright with these tires? Or will I run into issues with the width of them?? Thanks or all the help, looking forward to being an active member here! :flex dirty:
2007 i6 4x4 TB
2 inch BDS Lift with bilstiens upfront
275/65/18 Crosswind A/T
Quick disconnect swaybar endlinks
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by Anthony Hernandez » Sat Jan 02, 2016 3:37 pm

With 2" lift and marks spacers I ran 255/75/17's and only had issue with backin up while turning... A quick use of the sawzall and it never rubbed again lol
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by navigator » Sat Jan 02, 2016 7:37 pm

Unsure which tire you are planning to run but the math on that 275/70/18 runs out to just over 33. I think some guys have run a 285/75/16 with a 3" lift, not sure if you can run it on 2" or not. You have to allow for the increase in width as well as height.
As far as the lift chart, I think you can run a 265/75/16(32)with no lift but the focus of this site is for the off road crowd. While it will likely fit, I'm not sure you can wheel a 32" tire without a lift. My 32s scrubbed fender liner with the 2" lift in the parking lot until I trimmed it.
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by oefootball_70 » Sat Jan 02, 2016 8:00 pm

Cool, thanks for the info. I think I 'm going to look at a set of 285/60/18 Nitto Terra Grapplers now. There are a couple lightly used sets for sale around here that I can pick up for a decent price.

I'll keep you guys posted.
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2007 i6 4x4 TB
2 inch BDS Lift with bilstiens upfront
275/65/18 Crosswind A/T
Quick disconnect swaybar endlinks
oefootball_70
Cruiser
 
Posts: 25
Joined: Sun Sep 27, 2015 9:40 am
Name: Ryne
Vehicle Year: 2007
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD

by navigator » Sun Jan 03, 2016 12:10 am

If you aren't going to offroad, you likely don't need load range E tires.
"Please consider a search before posting. Folks on this site PIONEERED functional offroad use of these trucks."
The answer to many common lift questions can be found
here
My Build Thread
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navigator
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by oefootball_70 » Sun Jan 03, 2016 1:06 am

My issue is I don't want street tires, I need something that can get me through snow when we get it and into a field to shoot in. But not actual off-road conditions. Just sloppy mud, ruts are already dug in.
2007 i6 4x4 TB
2 inch BDS Lift with bilstiens upfront
275/65/18 Crosswind A/T
Quick disconnect swaybar endlinks
oefootball_70
Cruiser
 
Posts: 25
Joined: Sun Sep 27, 2015 9:40 am
Name: Ryne
Vehicle Year: 2007
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD

by navigator » Sun Jan 03, 2016 10:12 am

Most offroad tread patterns come in a load C for normal use or a load E which has heavier/stiffer sidewalls which are good for heavy towing or better puncture resistance when off road.
"Please consider a search before posting. Folks on this site PIONEERED functional offroad use of these trucks."
The answer to many common lift questions can be found
here
My Build Thread
User avatar
navigator
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Posts: 4651
Joined: Wed Mar 09, 2011 10:16 am
Location: NC, Winnabow
Name: Chris
Vehicle Year: 2006
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD
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