Weight Distribution System for 2006 Dodge 2500 Diesel with 2-Inch Lift Towing 32-Foot Haulmark  

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The Reese Strait-Line Dual Cam Trunnion Bar Weight Distribution/Sway Control System you referenced, part # RP66130, is a good option if it matches your trailer tongue weight. Dual cam sway control helps to stop trailer sway from starting in the first place because the cams lock in position to hold the trailer steady but will automatically unlock and slide to allow full-radius turns. This type of trunnion bar system also provides better ground clearance than round bar systems. The brackets for the Strait-Line system will need 5-1/2-inches on the trailer frame and will mount about 30-inches back from the hitch ball; maximum trailer frame width is 2-1/2-inches. You will also need a 2-5/16-inch hitch ball; you can use # C40085 from Curt. You can select an adjustable shank with the rise or drop needed to allow your lifted truck to tow your trailer level, such as Reese # RP54998.

The linked article on weight distribution and sway control systems covers a lot of important detail about the types of systems offered and how to select the correct one for your truck and trailer combination.

You can select a properly-rated weight distribution/sway control system by taking an accurate measurement of your fully-loaded as-towed trailer tongue weight. Systems are matched to trailers based on their fully-loaded tongue weight, not dry weight or empty hitch weight, so you will need to load your trailer just as it will be when you are on the road with all cargo, supplies, equipment, etc and measure your tongue weight. Please note the weight of any cargo in the bed of your truck that is behind the rear axle must be added to your measured trailer tongue weight. A system rated too low will not provide the correction you want, and one rated too high will create a stiff and erratic ride.

A second article covers several ways to measure tongue weight, including use of a dedicated tongue weight scale such as the etrailer # e99044.

With your confirmed tongue weight you can use the link provided to select a system matched to your measured tongue weight. According to the Haulmark website their 32-foot Grizzly trailer has a curb weight of 5150-lbs and a GVWR of 12,000-lbs.

The link provided will show you systems that include an adjustable-height shank to enable you to keep your trailer level.

expert reply by: Adam R

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