I am selling my 2004 Chevrolet 2500HD 4x4, Ext. Cab, Short Box, Duramax Diesel, LB7 block, LT package, White w/Tan leather, heated seats, Bose stereo, low profile tool box, spray in bedliner, nerf bars, gooseneck ball, BFG All Terrain K/O's, 285/75r16, about 65% tread left. Injectors replaced in...