[JRTJH]

If you have ordered a "clip on sway device" similar to this photo, it will be "woefully inadequate" to control sway on a trailer as long as yours.

I'd suggest that the FIRST action should be to find a CAT scale, properly weigh the rig in this manner:

Pull onto the scale with the TV front axle on pad 1, TV rear axle on pad 2 and trailer axles on pad 3. Weigh the rig.

Then, without moving the rig, uncouple the WD bars and reweigh the rig.

Then, pull off the scale, uncouple the trailer and return to the scale with "only the TV". Position the TV front axle on pad 1 and rear axle on pad 2 (as close to the same position on the pads as you can achieve. LEAVE THE HITCH AND WD BARS ON THE TRUCK.... reweigh the rig.

REMEMBER, if you are "in the TV seat for one weight, you need to be in the same place for EVERY weight. DO NOT ALTER WEIGHTS by allowing passengers to sit in the truck for "some" but not "other" weights.

ATTEMPT TO KEEP EVERYTHING IDENTICAL AS FOR CARGO/PASSENGERS with the only differences being those described above.

Once you get the weights, post them along with the GVW/FARW/RAWR/payload sticker information from your driver's door pillar.

This is the photo of the type sway device that simply isn't strong enough for a trailer of your size.

ADDED: The closest CAT scales to your location appear to be the Pilot and Kwik Trip truck stops located at Exit 69 on I-90. The cost for the three weight tickets will be approximately $15.