Hey guys, I have been hanging out here for a few months and reading up on what ya'll have been doing to your rides. Love all the pics, some really nice trucks. I know you get tired of this question, but I haven't seen a lot on what tire size I can go with on factory 20's. I'm going with 2.5" leveling kit. I was thinking 285/65R20 BFG's. Is that the biggestest I can get? Thanks, and I will get pics when I get the tires.

 

Welcome!

The consensus is that you can get a 35 inch tire onto a 2.5" leveling kit equipped truck. That would be either a 305 or 325 series tire (305s are a hair smaller and 325s are a little larger). 285s are a little shy of 33 inch but are quite a bit cheaper than 305s. Check out www.tirerack.com and also search the forums here for more information about what others have done. The photo gallery is pretty useful too, as most of the trucks in the galleries have desciptions of what's done so you can see what works, and what looks good.

 

Thanks princejo. I just get lost in all the numbers involved with the 305/XX 325/XX 285/XX I just wish they made it simple, 35 12.50 R20.

 

Anybody else running 305's on 20's? What should the middle number be, i.e., 65,60,55? Whoever came up with these tire sizes should be strung up by his toe nails.

 

I believe the number that you are telling him (305,285, and so on) is actually the width of the tire. The middle number (usually 60,65,70,75) is the hight of the side wall from the edge of the rim, to the outter edge of the tire. This number is the percentage of sidewall to the width of the tire. So a 305/60/r20 is smaller than a 305/65/r20. It's really confusing. Good luck

 

If it's a 4WD. If it's a 2WD then 33's are the largest you can go wiht only a leveling kit.

 

Thanks a lot guys. I think I have decided on the BFG 285/65 R20's. After reading more here and looking at the pics, these look like the tallest I can get after my level kit is installed. Thanks again for the advice. I'll post pics as soon as the transformation is complete!~

 

thats exactly right its the percentage of the width.

if your wanting to know the width of a p-metric tire just divide the width in millimeters by 25.4 and that will give you your width in inches.

then you can multiply your width in inches by the percentage and get the inches of height the sidewalls will have...multiply that number by two and ad that to the height of the rim and youll roughly have your tire diameter give or take a bit but enough to know what size tire you talking about.