Not sure if truck camper slideouts are similar to slideouts in other types of RVs.
Have you checked out the Truck Camper section of the Forum?
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package