I have not had any rattles come from my bed. I raise it all the way and hold for 5 seconds like everyone comments for the lippert systems. It always seems to hold tight to the ceiling.
Then I put the pins in.
If it still rattles I can see lowering it until it rests on the pins. The should take care of any rattles.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, Fresh water surge tank, Black Tank Tornado flush, 4999 zip ties.