Tire size question
2003 gmc 2500hd extended cab 8' box, 6.0 4l80e trans 4:10 gears 4x4 I bought used and it is time for new tires, stock I believe was 245/75/16 E Previous owner put 265/75/16 on it, should I stay with ...
Forum Discussion
JIMNLIN wrote:
A LT265/75-17 has a 8.5" wide tread. Load carrying tires work better on a truck if the tires tread width matches the wheels width. Racer types can mess with that ratio to achieve different results which load carrying isn't one of them.
If the truck is used a tow machine I would stick with the 245/75 tires as being a smaller diameter. I found I get more towing performance especially with a small block gas engine with a smaller diameter tire.
Also GM was bad about using 6.5" wide wheels on 2500 size trucks. A LT265/75-17 E has a 7"- 8.5" wheel width requirement vs a 6.5"- 7.5" for the LT245/75-17 E tire.
x2: Correct. Tread width should match rim width for best results.
