CREW CABS DOUBLE CABS REGULAR CABS ENGINE GCWR 2 (LBS) STANDARD BOX 2WD (LBS) LONG BOX 2WD (LBS) STANDARD BOX 4WD (LBS) LONG BOX 4WD (LBS) STANDARD BOX 2WD (LBS) LONG BOX 2WD (LBS) STANDARD BOX 4WD (LBS) LONG BOX 4WD (LBS) LONG BOX 2WD (LBS) LONG BOX 4WD (LBS) 6.6L V8 (17's) 24,000 14,500 6.6L V8 (18's/20's) 24,000 14,500 Duramax 6.6L Turbo-Diesel V8 (17's) 26,000 14,500 Duramax 6.6L Turbo-Diesel V8 (18's/20's) 27,500 18,500 14,500 14,500 14,500 18,500 14,500 14,500 14,500 18,500 14,500 14,500 14,500 18,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 14,500 2020 SILVERADO 2500HD CONVENTIONAL TRAILERING 1 CREW CABS DOUBLE CABS REGULAR CABS ENGINE GCWR 2 (LBS) STANDARD BOX 2WD (LBS) LONG BOX 2WD (LBS) STANDARD BOX 4WD (LBS) LONG BOX 4WD (LBS) STANDARD BOX 2WD (LBS) LONG BOX 2WD (LBS) STANDARD BOX 4WD (LBS) LONG BOX 4WD (LBS) LONG BOX 2WD (LBS) LONG BOX 4WD (LBS) 6.6L V8 (17's) 24,000 16,900 6.6L V8 (18's/20's) 24,000 16,900 Duramax 6.6L Turbo-Diesel V8 (17's) 26,000 18,100 Duramax 6.6L Turbo-Diesel V8 (18's/20's) 27,500 18,500 16,800 16,800 17,900 18,500 16,700 16,600 17,800 18,500 16,600 16,500 17,600 18,500 17,100 17,000 18,200 18,200 16,900 16,900 18,000 18,000 16,700 16,700 17,900 17,900 16,700 16,600 17,800 17,700 17,400 17,300 18,500 18,500 17,100 17,000 18,200 18,200 2020 SILVERADO 2500HD 5TH WHEEL/GOOSENECK TRAILERING 1 1 Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow. 2 Gross Combination Weight Rating.