Travel Trailer towing question, I apologize if it has been asked to many times.

[Rubber Duck]

Etorque and 1680 payload? Is this a v6? Axle ratio?

Its a 5.7 V8 with a 3.21 axle ratio

 

[John Kloehr]

Yes, there are 3 different settings though I forget how to access, probably in uconnect somewhere. Something I setup once and never touch, whereas the gain can/should be adjusted according to road conditions. These 3 different settings affect how fast the gain is ramped up IIRC.

I have not looked into the factory trailer brake controller, my experience is mostly with the after-market Prodigy line of brake controllers.

The setting is probably boost, typically ranging from none to several levels. Boost applies additional trailer braking when the truck brakes are first touched. The heavier the trailer is, the more boost is needed. This is to introduce some initial slowing as the controller uses g force to further activate/modulate braking. Without boost, the truck would need more braking to activate the trailer brake, the trailer would then be pushing the tow vehicle.

One subtlety of this method of control to watch for is when applying brakes before exiting a highway, onto an exit ramp which slopes down hill. The trailer might start pushing a bit as the inertial control starts damping out the road slope. Fix is to just take one's foot off the brake for a moment and reapply; this starts the control over with the new downhill baseline.