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Bought all of this crap brand new, including the wheels and sensors. Basically everything you need to go anywhere you want in the snow with your 2011-2012 GM truck, including the TPMS monitors so you don't get annoying dash lights. Entire setup has about 5000 miles.
Tire size is LT265/70/R17, Load Range E, Firestone Winterforce studded.
There are cheaper take off setups on e-bay, but they have had the TPMS sensors removed and you will have to look at an orange warning light on your dash all winter. The take offs also dont wear studded winter tires, which are worlds better than the even the most aggressive A/T tires in the snow.
Asking $1,000 or best.