bringin this topic back to life lol! i got a 2010 5.3 with the 3.08's too and i was lookin at going 275/70r18 but its about 13 pounds more per tire because i wanna go with the goodyear duratracs. im getting an afe drop in filter this year and an airaid MOT next year, also this summer goin with the flowmaster super 10 and im wondering if going up from the stock 265/65r18 michelin ltx m/s2 to the 275/70r18 duratracs is gonna be an awful decision. also i do alot of hunting up here in NY and its pretty hilly and i do a good bit of offroading so im wondering am i gonna just hurt myself doin this?