The common adapter rule is that adapters should only be used to go from bigger to smaller plugs, but there is a wiring harness that can get around that rule.

Manufacturers took a 7-Blade Plug and wired a 4 prong onto it so that we could plug into a 4 prong on the back of the tow vehicle. In addition to wiring on the 4 prong, they also wired on 3 extra wires.

Double Eye Leaf Springs are used with the shackle-type suspensions.

Slipper Leaf Springs are the heavy-duty springs used with slipper-type suspensions.

1. Trailer hitch receiver from the vehicle.

2. Weight Distribution Adjustable Shank is the piece that slides into the opening of the hitch and provides an attachment point for the equailizer head. A shank comes in different lengths, drops, and rises and allows you to adjust the height that your trailer sits at.

3. Equalizer Head (Ballmount) is the head unit that the spring bars go into, holds the ball and attaches to the weight distribution. Equalizer Head's vary in weight distribution systems. Each system should have its own parts breakdown which should supply a part number if you need to replace the head. Refer to our Weight Distribution Parts category.

4. Spring Bar Assemblies attach to the equalizer head. There are two types of spring bars, round and trunnion. The round style bars slide up into the head and are held in place with clips. The trunnion style bars slide into the head from the side or back. Like Equalizer Head's, spring bars vary by weight distribution systems - look at your systems parts break down for part...

What Do I Need To Consider When Choosing A Hitch Ball?

A trailer hitch ball is the towing accessory that attaches to the ball mount and provides the connection from the trailer hitch to the trailer. The trailer ball is gripped by the coupler and held into place on the trailer's frame. Trailer hitch balls are sold in different ball sizes, shank lengths, diameters and capacities.

Hitch Receiver Extensions

• Extends 2" x 2" receiver tube

• Enables towing of small utility trailers behind a camper

• 3,500lbs towing capacity

• Comes in 8", 14", 18"

• Reduces towing capacity by 50%