Search 34,354 chart rows transcribed from manufacturer towing guides. See the engine, cab, axle, required equipment, and source together. These are published comparison ratings; your truck’s equipment and loaded weight still matter.
8.1L V8 · 4WD · Crew Cab · Not specified in chart · 4.10 axle
Equipment: GM model code K25743; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '43' as decoded elsewhere in the same GM document.
6.6L V8 Turbo Diesel · 4WD · Extended Cab · Not specified in chart · 3.73 axle
Equipment: GM model code K25953; Automatic or manual transmission
Chart engine column: 6.6L V8 TURBO DIESEL (AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '53' as decoded elsewhere in the same GM document.
6.6L V8 Turbo Diesel · 2WD · Crew Cab · Not specified in chart · 3.73 axle
Equipment: GM model code C25943; Automatic or manual transmission
Chart engine column: 6.6L V8 TURBO DIESEL (RATINGS AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '43' as decoded elsewhere in the same GM document.
8.1L V8 · 4WD · Crew Cab · Not specified in chart · 4.10 axle
Equipment: GM model code K25743; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (RATINGS AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '43' as decoded elsewhere in the same GM document.
8.1L V8 · 4WD · Crew Cab · Not specified in chart · 4.10 axle
Equipment: GM model code K25743; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (RATINGS AUTOMATIC OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '43' as decoded elsewhere in the same GM document.
Page 15, Sierra HD automatic transmission ratings with gooseneck/fifth-wheel trailer, row '2500hd series crew cab standard box 2wd', column Duramax 6.6L V-8 diesel, axle 3.73
Page 15, Sierra HD automatic transmission ratings with gooseneck/fifth-wheel trailer, row '2500hd series extended cab long box 2wd', column Duramax 6.6L V-8 diesel, axle 3.73
8.1L V8 · 2WD · Extended Cab · Not specified in chart · 4.10 axle
Equipment: GM model code C35953; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (RATINGS AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '53' as decoded elsewhere in the same GM document.
8.1L V8 · 2WD · Extended Cab · Not specified in chart · 4.10 axle
Equipment: GM model code C35953; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (RATINGS AUTOMATIC OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '53' as decoded elsewhere in the same GM document.
Automatic transmission; Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver.; Chart prints '15,600/15,300' for 2WD/4x4; this row is the 4x4 value.
8.1L V8 · 4WD · Crew Cab · Not specified in chart · 4.10 axle
Equipment: GM model code K25743; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '43' as decoded elsewhere in the same GM document.
6.6L V8 Turbo Diesel · 4WD · Extended Cab · Not specified in chart · 3.73 axle
Equipment: GM model code K25953; Automatic or manual transmission
Chart engine column: 6.6L V8 TURBO DIESEL (AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '53' as decoded elsewhere in the same GM document.
6.6L V8 Turbo Diesel · 2WD · Crew Cab · Not specified in chart · 3.73 axle
Equipment: GM model code C25943; Automatic or manual transmission
Chart engine column: 6.6L V8 TURBO DIESEL (RATINGS AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '43' as decoded elsewhere in the same GM document.
8.1L V8 · 4WD · Crew Cab · Not specified in chart · 4.10 axle
Equipment: GM model code K25743; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (RATINGS AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '43' as decoded elsewhere in the same GM document.
8.1L V8 · 4WD · Crew Cab · Not specified in chart · 4.10 axle
Equipment: GM model code K25743; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (RATINGS AUTOMATIC OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '43' as decoded elsewhere in the same GM document.
Equipment: No package requirement recorded; check source chart.
Chart model code K25743; row label 'K25743 – Crew Cab Standard Box, 4x4'. Silverado Classic (carry-over body style sold alongside the Next Generation model in 2007). 6.0L: manual or automatic; 8.1L and Duramax: automatic 6-speed.
Automatic transmission; Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver.; Chart prints '15,300/15,000' for 2WD/4x4; this row is the 2WD value.
Automatic transmission; Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver.; Chart prints '15,300/14,900' for 2WD/4x4; this row is the 2WD value.
8.1L V8 · 2WD · Extended Cab · Not specified in chart · 4.10 axle
Equipment: GM model code C35953; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (RATINGS AUTO. OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '53' as decoded elsewhere in the same GM document.
8.1L V8 · 2WD · Extended Cab · Not specified in chart · 4.10 axle
Equipment: GM model code C35953; Automatic or manual transmission
Chart engine column: 8.1L V8 GAS (RATINGS AUTOMATIC OR MANUAL TRANS. RATINGS). Chart note: Trailer ratings are calculated assuming a standard equipped vehicle plus driver. Optional equipment, passengers or cargo will reduce trailering capacity. Cab type derived from GM model-code suffix '53' as decoded elsewhere in the same GM document.
Chart model code C35943; row label 'C35943 – Crew Cab Long Box, 2WD/SRW'. Silverado Classic (carry-over body style sold alongside the Next Generation model in 2007). 6.0L: manual or automatic; 8.1L and Duramax: automatic 6-speed.
Chart model code C35953; row label 'C35953 – Extended Cab Long Box, 2WD/SRW'. Silverado Classic (carry-over body style sold alongside the Next Generation model in 2007). 6.0L: manual or automatic; 8.1L and Duramax: automatic 6-speed.
Chart model code C35953; row label 'C35953 – Extended Cab Long Box, 2WD/DRW'. Silverado Classic (carry-over body style sold alongside the Next Generation model in 2007). 6.0L: manual or automatic; 8.1L and Duramax: automatic 6-speed.
Chart model code K30903; row label 'K30903 - Regular Cab Long Box, 4x4'. Next Generation (GMT900) Silverado. Notes: all 2500HD and 3500HD Series have an automatic transmission and a 3.73 axle ratio as standard equipment; maximum GCWR 18,500 lb (6.0L), 22,000 lb (Duramax SRW), 23,500 lb (Duramax DRW); weight-carrying hitch limit 7500 lb.