KBB.com 10 Most Awarded Brands. This Chevrolet Silverado 2500HD boasts a Turbocharged Diesel V8 6.6L/403 engine powering this Automatic transmission. TRANSMISSION, ALLISON 1000 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive, electronic engine grade braking and tow/haul mode, SUNROOF, POWER, SEATS, FRONT FULL-FEATURE LEATHER-APPOINTED BUCKET.*This Chevrolet Silverado 2500HD Comes Equipped with These Options *GOOSENECK/5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR FIFTH WHEEL HITCH. Includes Hitch platform with tray to accept ball and drilled box holes with caps installed, box mounted 7-pin trailer harness (similar to (UY2) harness)., DURAMAX PLUS PACKAGE includes (L5P) Duramax 6.6L Turbo-Diesel V8 engine, (MW7) Allison 1000 6-speed automatic transmission, (GT4) 3.73 rear axle ratio, (K05) engine block heater and (K40) exhaust brake (Includes (DQS) Chrome, outside heated power-adjustable vertical trailering mirrors and (VQY) chrome recovery hooks, LPO.) , REAR AXLE, 3.73 RATIO, MIRRORS, CHROME, OUTSIDE HEATED POWER-ADJUSTABLE VERTICAL TRAILERING, MEMORY-EQUIPPED, UPPER GLASS, POWER-FOLDING AND MANUAL EXTENDING; Includes integrated turn signal indicators, consisting of 51 square inch flat mirror surface positioned over a 24.5 square inch convex mirror surface with a common head and lower convex spotter glass (convex glass is not heated and not power-adjustable) and addition of auxiliary cargo lamp for backing up (helps to see trailer when backing up with a trailer) and amber auxiliary clearance lamp, LPO, CHROME RECOVERY HOOKS, LED LIGHTING, CARGO BOX WITH SWITCH ON CENTER SWITCH BANK, JET BLACK/MEDIUM ASH GRAY PIPING AND STITCHING, PERFORATED LEATHER-APPOINTED SEAT TRIM, HIGH COUNTRY PREFERRED EQUIPMENT GROUP includes standard equipment, GVWR, 10,000 LBS. (4536 KG), EXHAUST BRAKE.* Feel Confident About Your Choice *According to Carfax's history report: No Damage Reported, No Accidents Reported, 23 Service Records.