Review on 🔧 Camco Olympian Aluminum Stack Jacks - Stabilize, Level, and Position RVs, Trailers, and Campers - Up to 6,000 lbs Capacity - 17" Extension - 4 Pack (Model 44560) by Robby Agrawal

I bought 8 (2 x 4 packs) for my 8000lb 36ft camper to stabilize it when camping. The electric landing gear on the camper didn't seem to help much with the bouncing and swaying of people walking around. Even my 10 year old daughter rolling over in her bunk caused a commotion. These jacks completely solved the problem. With four on each side and equal space, there was almost no traffic. It should be noted that their maximum size is around 17 inches, so bear this in mind before purchasing. My RV's frame is fairly low (about 16 inches off the ground). ), so we didn't care, but it might be an issue for higher frames. I didn't want to over tighten the screw so I cut the 12 foot 2x8 into 8 inch sections to install the bushings and it worked great. You can easily stack 4 or 5 of these blocks to add height. As for the screw, which is loose as some reviews suggest, that's true, but just make sure it's even and straight and you'll be fine. This disappears as soon as the jack is pressed down. You should only use them for stabilization, so this shouldn't be a problem. As strong as they seem, I definitely wouldn't use them to get anything off the ground. I highly recommend, if you use them like I do, going around the camper a few times, twisting each jack half a turn each time. This will increase the pressure on the frame and jacks evenly. Reverse the removal procedure to release pressure gradually and evenly.