Best Weight Distribution System for a 12,000 lbs Toy Hauler

Updated 01/19/2026 | Published 08/09/2024

Question:

I have a toy hauler with 12,900 GVR, a dry hitch weight of 1390 pounds. My truck has a gvrw of 11,500 pounds. Which hitch option would be the best choice for my setup?

asked by: Rob O

Expert Reply:

Hey Rob! Weight distribution systems are based off of tongue weight which is 10%-15% of your trailer's total weight so that would put a regular trailer between 12,900 lbs and 1,900 lbs. Since yours is a toy hauler you're not going to get close to the 15% when you're loaded up because the weight of whatever you're hauling is going to be behind your rear axle.

With this in mind, I recommend the Strait-Line Weight Distribution w/ Sway Control item # RP66075. This system has a tongue weight range of 1,100 lbs - 1,700 lbs. The dual cam sway control will keep your toy hauler in line with your F-350 when you make any sudden moves, take a gust of wind to the side, or get passed by a semi driving down the highway.

Please note that this system will not fit trailer frames wider than 2-1/2".

This system does not include a shank but with your 3" receiver that's not necessarily a bad thing. There is one weight distribution shank that will work with your F-350 and not require a reducer sleeve and it is the BulletProof Hitches Weight Distribution Shank for 3" Hitches item # BPH85RR.

You will also need a hitch ball. I recommend item # 63840. It has a 20,000 lbs weight capacity and will work great with the Reese item # RP66075.

expert reply by: Jerred H

Jerred H.

1/19/2026

Hey Rob, how did the Strait-Line weight distribution system work out with your toy hauler and F-350? Did the sway control make a noticeable difference on the highway? Your experience could help others setting up a similar rig.

Rob O.

1/19/2026

@JerredH I wasn't super happy with the Straight-Line solution. The grooved shims used to help set the angle didn't hold despite being torqued to the specified amount, and ultimately ended up slipping and causing other issues. As it turned out, we ended up trading in that trailer for a 5th wheel shortly afterwards so I haven't used the hitch setup since, but the grooved shims are a weak spot in that setup. I recently bought a flatbed trailer we will use for more local hauling of our SXS and will explore setting this up again later this summer, but I will need to re-order those shims as the ones I have aren't usable anymore.