Should I Go Bigger?

[2004GMC1500CC]

I've got some 285/60/18's on my 04 1/2 ton CC 2wd now and recently bought some chrome 20" wheels. Was thinking that as soon as the 18's are worn out I would buy some 275/55/20's to put on since they will fit fine as is. Should I go bigger? I would consider a 3"-4" spinkle lift, but nothing more. What's the largest 20" tire I could fit?

[pm26]

You may want to try military tread 900 X 20 tires, or even better 1100 X 20. 900 X 20 s will be 40 inches in diameter when mounted, 1100 X 20 about 42 inches.

 

http://www.tnjmurray.com/pictures/murray_tires1.jpg

 

Just kidding. No, do not use anything bigger.

[2004GMC1500CC]

You may want to try military tread 900 X 20 tires, or even better 1100 X 20.

 

http://www.tnjmurray.com/pictures/murray_tires1.jpg

don't think they will clear with a 3 or 4" spindle lift