32" Is The Largest Spare Tire You Can Fit On These Trucks And Here Is Proof

jerflash

Original poster
Member
Aug 12, 2020
40
NYC
What is the largest spare tire you can fit on a 02-09 Trailblazer or Envoy?

I've seen this asked many times on foums and no absolute answers are given or proof shown.

That changes now.

The largest tire that will fit is a 235/80R17 which works out to 31.8" tall. I got a $100 "new old stock" tire from ebay and have them mounted on some cheap method 17x7.5" wheels I got in the bolt pattern I have on my spacers and were also $150 on ebay.

Here it is on the truck next to the 255/75R17 (32.1") I run daily.
Sport utility vehicle Automotive Side Marker Light Automotive Carrying Rack Compact sport utility vehicle Hardtop


Automotive Tire Automotive Exterior Automotive Wheel System Fender Tread



Here it is under the truck. Tight fit with 1/4" to spare but its fine. It may rub if im towing but its metal on rubber... whatever.

Synthetic rubber Tread Bumper Fender Silver


Motor vehicle Automotive Tire Automotive Exterior Synthetic rubber Automotive Wheel System


Synthetic rubber Tread Pipe Nut Tire Care



I have true 32" tires on my 2008 Trailblazer with a 3" lift. 255/75R17 which comes out to 32.1". I did not have any issue driving with these on any corner of the truck with stabilitrack on.

This I have found 255/75R17 is the PERFECT size for these trucks. You can run 265/70r17s but thos are only 31.5"

Let me know if you want more info but this is a PSA
 

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