I'm looking to buy a new truck and I do a lot of off road driving where traditional chains (not cable chains) are necessary. I'm looking at the Chevy Trail Boss (Silverado 1500) but you can't chain it. Come to find out, you can't chain a lot of the newer trucks. Does anyone have a source to purchase chains that will work on the newer Silverado 1500 or similar GM truck or another solution that won't void the vehicle warranty? The tire size is 275/65R18 and I believe the clearance from the inside of the tire sidewall to suspension/steering components is 0.61 inches.