Towing Capacity of a 2003 Chevrolet Suburban 5.3L Engine with 3.73 Gears
Question:
I have a 2003 suburban 1500 3.73 axle rating 5.3L with auto level shocks in rear. what is my max pulling capacity for RV trailer.
asked by: Jeff
Expert Reply:
According to the owner's manual for your 2003 Chevrolet Suburban with the 5.3L engine and 3.73 gear ratio, the towing capacity of the vehicle is 7,400 lbs if you have a 2WD or 7,100 lbs of you have a 4WD. In order to tow a trailer with your Suburban you will need a trailer hitch, wiring harness, and ball mount/hitch ball.
If you do not already have a trailer hitch then I recommend using the Draw-Tite Ultra Frame Trailer Hitch Receiver part # 41930. The Ultra Frame is a custom fit and has a weight rating sufficient for the maximum towing capacity of your vehicle. It looks like most Suburbans came with a factory 7-way so if your trailer has brakes then all you would need is brake controller like the Tekonsha Prodigy P2 Trailer Brake Controller part # 90885 with the Tekonsha Plug-In Wiring Adapter part # 3015-P.
I have attached a help article on choosing the correct ball mount for you as well.

Products Referenced in This Question
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - GM
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- Tekonsha
more information >
Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LED Display
- Up to 360 Degrees
- Tekonsha
more information >
Product Page this Question was Asked From
Draw-Tite Ultra Frame Trailer Hitch Receiver - Custom Fit - Class V - 2"
- Trailer Hitch
- Custom Fit Hitch
- Class V
- 1000 lbs TW
- 10000 lbs GTW
- 12000 lbs WD GTW
- 2 Inch Hitch
- 1200 lbs WD TW
- Visible Cross Tube
- Draw-Tite
more information >
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