2020 Online Order / Reference Guide    

2020  Express Cargo  TRAILERING SPECS
Maximum trailer ratings are calculated assuming standard equipped vehicle, driver and required trailering equipment. The weight of optional equipment, passengers and cargo will reduce the maximum trailer weight your vehicle can tow. 10 to 15% of the trailer weight is the recommended trailer tongue load.
Automatic Transmission Ratings
Model (LV1) 4.3L V6 gasoline (L96) Vortec 6.0L V8 FlexFuel (LC8) 6.0L V8 SFI Gaseous (LWN) 2.8L Duramax Turbo-Diesel
Axle
Ratio
Maximum Trailer
Weight lbs. (kg)
Axle
Ratio
Maximum Trailer
Weight lbs. (kg)
Axle
Ratio
Maximum Trailer
Weight lbs. (kg)
Axle
Ratio
Maximum Trailer
Weight lbs. (kg)
CG23405
3.427400 (3357) 3.4210000 (4536) 3.4210000 (4536) 3.427000 (3175)
CG23705
3.427100 (3221) 3.4210000 (4536) 3.4210000 (4536) 3.426100 (2767)
CG33405
3.427400 (3357) 3.4210000 (4536) 3.4210000 (4536) 3.426200 (2812)
CG33705
3.427200 (3266) 3.4210000 (4536) 3.4210000 (4536) 3.426000 (2722)

The wiring system is designed to operate with maximum performance and reliability. Adding electrical accessories to the vehicle for which it was not designed, would case abnormalities in the electrical system.

The electrical system was designed to handle one additional stop/turn light bulb per tail light circuit (one added stop/turn light bulb to the right and left side). It is not recommended to add more than one bulb per circuit as it will result in damage to the electrical system (without optional trailer Towing Wiring). It is highly recommended to order the van with the optional (UY7) trailering wire harness only, trailering provisions for towing.


GCWR For Engine/Rear Axle Ratio Combination with Automatic Transmission
Engine (GCWR) Gross Combination Weight Ratings lbs. (kg)
13000
(5897)
16000
(7258)
(LV1) 4.3L V6 gasoline3.42  
(L96) Vortec 6.0L V8 FlexFuel   3.42
(LC8) 6.0L V8 SFI Gaseous   3.42
(LWN) 2.8L Duramax Turbo-Diesel3.42  
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Model and Option Weights