Forum Discussion
RustyJC
Mar 08, 2015Explorer
The OP's primary complaint seemed to be surging (fore/aft forces imparted on the tow vehicle by the 5th wheel). If you currently have a solid pin box extension, this problem can be greatly reduced with a pin box extension that provides damped fore/aft articulation between the tow vehicle and 5th wheel. In the past, I've used and can highly recommend the Demco GlideRide pin box extension. It reduced the surging of a previous 16K GVWR 5th wheel by probably 85-90%. Our current 19K GVWR 5th wheel was factory equipped with the TrailAir tri-glide pin box extension that provides fore/aft compliance similar to the Demco with the addition of an air spring (airbag) and shock absorber to provide vertical compliance between the 5th wheel and tow vehicle.
Rusty
Rusty
About Fifth Wheel Group
19,027 PostsLatest Activity: Nov 07, 2025