Tire Size

[philly]

Whats the biggest size tire you can put on a stock 01 2500 HD with the stock aluminum rims?

[Chevyfreek]

Some people are running as big as 305/70/R16 on the factory rims, but I think that is way to much tire for a 6.5" wide wheel. I have seen quite a few with 285/75/R16 as well. These to I think are to wide for the factory wheel, but again a lot of people run them and don't seem to have any bad tire wear problems. I have heard that some trimming may be required of the front air dam and inner plastic fender to make these fit. Maybe cranking up on the torsion bars a bit as well. If you looks at most tire websites they tell you what rims size to use with the diffferent size tires some 265/75/R16 may workon a 6.5" rim by some manufactuers specs, but I don't think that I have seen any. I personally would not go bigger than a 265/75/R16 on the factory rim, but that is just me. Like I said there are people out there running the other sizes stated above. Hope this helps...

[JimWilson]

I'm running 285's on mine. No problems in over 20K, so I'm happy.

[jhill]

285's on 03 sierra as well. Had to turn the torsion bars and trim the plastic skirt under the bumper at an inside corner. Not a single problem though.