changing tire size.

[wellsupplyguy]

Im in need of new tires for my canyon and Im wondering if i can go from 235/75/15 to 265/75/15 or will it cause damage to said vehicle?

[jwhjr]

2 things to consider - Will the tires rub on the fenders, especially when turning, and how much will your speedo be off?

[Powerstroke]

Apparently the 4wd Z71's already come with 265/75's so that should be no problem. They don't have any different sized fenders, just different body moldings. You should be able to fit the 265's with no problems.

Your speedo will only be off by 2.5% or about 1.5mph at 60mph. That means you'll be off by .75 mph at 30mph. A incnosequencial amount. If you do feel the need to have your speedo be GPS accurate than your friendly GM dealer will be able to reprogram your computer in the truck to reflect the tire change. Also many aftermarket power tuners will allow you to do this at home.

[wellsupplyguy]

My canyon is not a z-71 and it has the 235s on it now,but its the sle-4wheel drive model. I hope I dont have to lift it or anything.

[18 inch Crappie]

Just go to a good tire store and they will help you, that easy...

[Powerstroke]

You do NOT have to lift it. The Z71 is not a lifted version. It says higher stance and that has to do with the taller tires. It may have a factory torsion bar crank but I doubt it. It looks like its just a taller tire package, better shocks, skid plates, etc.

[wellsupplyguy]

Thanks power stroke,I went to a few different dealers and their opinions varied from place to place . So I guess I will try some on and see what happens .

[Dragonsm]

http://www.csgnetwork.com/speedocalibcalc.html

That's a good HSOforum to visit if you want to see the difference in width, diameter, and speed. If you do go with a different tire size, you may also want to get your speedometer recalibrated for use with the new size tires as your speed will be off.

Thanks

Steve

[Powerstroke]

My advice wellsupplyguy is to go to a reputable tire dealer and ask them to mount a set of 265's to check for fitment. Most good places will do that for you. You can usually test fit and cycle the suspension and steering to inspect your clearances.

I am a huge truck nut no matter who is the maker. Truth be told I'm a Ford guy, but I love all makes. Unfortunately I know more about the vehicle I want to buy than the dealer selling it. Most don't know anything about the extra packages other than what their little cheat sheet tells them. Your best bet would be to try and speak with a mechanic at the shop. I check the stats about the overall height of the vehicle and they do not vary among 4wds. The differences is between 2wd and 4wd heights.