I had 305/60/R20 Goodyear SRA's on my truck befoer I lifted it,with no rubbing.Although the inner sidewall of the tire was very close to the spindle,about a 1/4" of space......That is the biggest tire I had on my factory rims...

 

how does 305/60/r20 look do you have a pic

 

im planning to get some new rubber before the snow starts falling.
probably BFG All-Ts. they have always worked well for me.

stock is 275/60/20, so...
305/50/20= 1" shorter
305/55/20= .2" taller
295/60/20= .9" taller
285/55/20= .7" shorter
285/65/20= 1.6" taller

i dont want to go shorter, and i think id prefer extra height over more width.
so im thinking the 285/65 may be my favorite of these.
can anyone confirm fitment? anyone have this size installed? pics?

 

http://www.offroaders.com/tech/AT-MT-Tires/

This is a great site for AT/MT tire reviews. On most of the tire links they will give you the exact dimensions on the tire. Some tires do not measure the same as the dimensions they are sold as.

 

i want to put bigger tires on my truck i currently have an 08 dodge ram 1500 bighorn edition with 275 60 20's on it how much bigger can i go without modification

 

i got 285 65 20 but don't think they would fit without a leveling kit.

 

Your in the 2009+ section, although they should be very similar I do know 09+ has slightly less backspacing.

Check out This Sticky I made a while back in the 3rd gen section. It should help!

 

they fit with no level in the front

 

Note that all the dimensions posted above are theoretical. You might be amazed at the different actual sizes if you look at the spec sheets.

BTW, I resurrected this thread because I had the same question. I'm leaning towards 305/55/20 on my stock 9" wheels, but I'm going to look at the inside clearance first.

 

would like to see a full side and rear stance pics!