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Sway Bracket Assembly

Sway Bracket Location:

Measure from the center of the coupler along the outside of the trailer frame, and place a mark at 32” on both sides. This is the center mark for the sway bracket assembly.

Check around the trailer frame and make sure that there are no gas lines, brake lines, or electrical wiring that could be affected by the installation of the link plates. If so, make sure these are re-routed or avoided and will not be disrupted or damaged by the link plate installation.

Placing the sway brackets centered at 32” back puts the least amount of stress on the trailer and hitch components, and provides the most comfortable ride. Sway brackets should be placed at 32” whenever possible.

In some cases where there is an obstruction at 32” that cannot be avoided, the link plates may be moved forward up to a minimum distance of 25” from the center of the coupler. See Figure 6.

Eq 4 K Owners Manual Web Images 2017 Fig6

Do not use an impact wrench to tighten link plate or L-bracket bolts

Assemble Link Plates:

Insert two 7/16” x 1-1/4” bolts through each outside link plate from the back side. The slot in the back should keep the head of the bolt from rotating.

Thread a 3/8” x 3-1/4” bolt through the single hole of the outside and inside link plates from the outside in. The head of the bolt should be against the outside link plate with the bolt pointing inward. Put a split washer on the bolt and thread a nut onto end of bolt a few turns. See Figure 7.

Eq 4 K Owners Manual Web Images 2017 Fig7

Identify your coupler style. See Figure 8.

Eq 4 K Owners Manual Web Images 2017 Fig8

Top-mount: If your coupler is a top-mount coupler, place your link plates so that the single hole is above the frame, and the L-bracket studs are toward the top of the frame on the outside. See Figure 9a.

Bottom-mount: If your coupler is a bottom-mount coupler, or is a “V-nose” trailer, install your link plates ‘upside-down’ by placing your link plates so that the single hole is below the frame, the L-bracket studs are toward the bottom of the frame, and the bolt is held tightly against the bottom of the frame. See Figure 9b.

Eq 4 K Owners Manual Web Images 2017 Fig9A
Eq 4 K Owners Manual Web Images 2017 Fig9B

Thread the second bolt through the link plate hole closest to the trailer frame with the head on the outside. See Figure 10. Put a split washer on the bolt and thread the nut onto it from the back side. Refer to Figure 11 for bolt placement based on your trailer frame height.

Eq 4 K Owners Manual Web Images 2017 Fig10

Pinch the link plates tight to the sides of the frame and hand tighten the nuts on the inside. See Figure 12a.

Tightening only one nut without first pinching the link plates to the frame may cause the inside link plate to bend when torqued completely. See Figure 12b.

Eq 4 K Owners Manual Web Images 2017 Fig12A B

After both nuts are finger tight, use a torque wrench to tighten all link plate bolts to 25-30 ft-lbs torque.

L-Bracket Installation:

Slide the L-brackets onto the link plate studs with the spring arm plate facing away from the trailer. For the initial setup, leave 2 holes showing at the top above the studs and two below. See Figure 13. They may need to be adjusted up or down later to get good weight distribution. Thread on the nylock nuts and tighten them. When weight distribution is complete, these nuts should be torqued to 45 ft-lbs.

Eq 4 K Owners Manual Web Images 2017 Fig13