These were included as part of the trailer. They are stabilizer shafts, with a 3 inch flat palte on each end, about 2 feet long that mount between the fascia of the slide out and trailer frame to keep the slide out from extending when travelling.
Me too. Camper does not go on the highway without them in place.
Not all slide mechanisms need them. Just the ones with the rack and pinion gearing require them to be installed due to the safety mechanism in the pinion.
You can hear the safety mechanism release when you over extend or collapse the slide.
Since the slide tilts outward (from the top), without the slide lock a sharp knock (like a curb strike) can start the slide opening. Once in motion, the weight of the slide could keep it going until fully opened.
In a less severe sideways motion (like a swerve) the slide can cock in the opening causing an out of alignment situation where the slide will leak or bind when opening or closing.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
I have them too, however I have NEVER been able to use them. If I put them on the fascia board, as stated, it just pushes the trim piece off by pulling out the trim nails- not much good there; If I attempt to put them directly on the seal, the angle of the seal prevents any possibility of that. So....they sit at home in my garage collecting dust. That is why a lot of other people don't use them, too. Randy
I asked my dealer while doing the PDI. He didnt suggest them for the reason stated above. Forgetting and the damage they do to the inside. Between them and the slide supports some people use, He said it keeps his service dept busy.