New here, so just looking at older posts...
INTREPER, I was looking into the same thing today. Also want to retain my chrome 17".
Stock 245/65R17 = 29.5" O.D., 9.8" section width...
Safe upgrade is 275/60R17 = 30.0" O.D., 11.0" s.w. Only 1/4 inch added in height of tire but gain 1.2" width.
I'm looking at getting more wheel, less wheel well gap.
Thinking about 265/70R17 = 31.7" O.D., 10.7 s.w.
1.1" added to height vrs. o.e. Looking at the truck the only tight area is the front steering knuckles. About 1" space at top. May have to cut off the upper ball joint "hex" fitting pointing down. No big deal, but what about ABS? I ran 265's on my old GC with no problems.
Goodyear has the Wrangler SilentArmor in the 265 size. Much more agressive all terrain tread.