Weight Distribution System Recommendation for 2017 GMC Sierra Towing Passport Camper  

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Helpful Expert Reply:

For eliminating sag when towing a trailer the best option is a weight distribution system. The advantage of a WD system over suspension enhancement is that it reduces the sag of the rear suspension by distributing some of the tongue weight up to the front axle of the tow vehicle which greatly help with braking and handling as well as alignment.

Suspension enhancement basically just removes the sag but you don't have as much weight on the steering axle which means braking power and emergency turning is reduced compared to a weight distribution system.

The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use.

Most likely the Strait Line system part # RP66084 would be rated correctly as it has a tongue weight range of 600-1,200 lbs and also features the best sway control that works to fight sway before it starts. This will give you the best possible towing experience.

For a 2 inch ball you would want part # A-90 and for a 2-5/16 inch ball # 19286 and you'd be set.

expert reply by: Jameson C

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