Reese 66558 Steadi-Flex Weight Distribution System w/ Built-in Sway Control, 6,000 Lbs

Instructions: Installation Details.pdf

Features

Integrated sway control actively resists sway and levels the vehicle and trailer
Hitch ball sold separately - requires 1" diameter shank
Evenly distributes weight over axles of tow vehicle and trailer for improved stability and control
Creates a more level ride for both tow vehicle and trailer
Integrated active sway control limits side-to-side movement of trailer
Spring-loaded ball bearings in system head rest in detents, applying constant pressure to help trailer stay centered
Brackets keep spring bars in place for a rigid system that holds your trailer in line
No lift chains - eliminates unwanted movement of spring bars
Steel-on-steel friction helps to correct any sway that may occur due to winds, curvy roads, or sudden maneuvers
Spring bars work with brackets to transfer tongue weight evenly to the tow vehicle
Constructed of forged steel
Secure in system head with easy-to-use snap pins
No-drill, clamp-on brackets mount directly to your trailer frame
Desired tilt is easily achieved using preset positions on system head - no more piling on washer after washer
Grease in trunnions make for simple maintenance
Black powder coat finish is durable and corrosion resistant
System includes head assembly, adjustable shank, spring bars, active sway control brackets, chrome
Pins and clips, and all necessary hardware
Allows Backing up, because of built in sway bar technology

Specs

Fits 2" inch Hitch Receivers rated for use with weight-distribution systems
Maximum tongue weight: 600lbs
Maximum gross towing weight: 6,000lbs
Shank length: 7-3/4" Inch
Maximum drop: 2-7/8" Inch
Maximum rise: 7-5/8" Inch
Spring-bar length:
Ball Size: None
Weight: 73lbs
Limited lifetime warranty

You need to put 10-15% of your total trailer weight on the tongue for good stability, and sometimes that's far too much tongue weight for the tow vehicle. It overstresses the rear springs, reduces weight on the front tires and compromises steering, and generally makes your whole rig hard to control. A properly set-up Weight Distributing hitch will transfer weight from the rear axle to the front, leveling the truck. That means you have full weight on the front tires for steering, a rear ride height that keeps you off the bump stops and keeps the headlight aimed properly. If your rig still has sway issues, even with properly adjusted tongue weight, then you can add a sway control device, either mechanical, friction or hydraulic to work in concert with your WD hitch to really tame that sway. Don't tire yourself out fighting a poorly-set-up, ill-handling rig. Don't take chances with a rig that won't go straight, doesn't respond to the steering wheel properly and has poor braking performance, all because the weight is all on the wrong end of the truck.