FOR SALE: 38x15.50R16.5 Parnelli Jones Dirt Gripz Radials (mounted and balanced) on 16.5x12 Weld Typhoon wheels. Wheels fit 99-04 Superduty's, came off my 04. Tires have 20,000 miles on them - over half tread left easy. My buddy has run 3 sets on his Superduty and gotten almost 50K out of all 3...