Review on 💨 AIR LIFT 57215 LoadLifter 5000 Series Rear Air Spring Kit - Enhanced Black by Roberto Manzer

love these things. I chose not to use side air and simply routed the lines for both bags to a makeshift mount on the bottom of the rear bumper. I installed it on a 1999 F250 Super Duty 4x4 and only really got it to work once. I put 3,000 pounds in the bed of a truck, inflated each bag to 60psi, and if you couldn't see the concrete blocks sticking out of the sides of the truck, you wouldn't know there was something there. On the way home it felt like it was empty. In fact, it drove slightly better than empty. I can't be happier with the results. No more riding with a load, headlights pointing upwards, rear wheel hopping over bumps and front brakes locking up at a quick stop. They keep the truck straight and level on the road, and it drives like it was that weight from the factory. An added bonus is that you no longer have to ruin your back by adding extra springs that won't give an inch when there's no load. Just let the air out and you're back in the factory truck. Can't wait to see how they handle the big trailer. I don't think I will be disappointed. Note that the top bracket that attaches to the frame does not fully clear the cutout on Ford frames. I had to take the shims they supplied for Mopar applications and grind one down to a taper for the portion of each bracket that falls within the radius of this recess. I tried installing one without it and the thing was so springy that the mounting screw broke before I could tighten it all the way. Installed homemade spacers and it worked. As with most generic items, installation often requires a bit of manufacturing/modification work. You will need to drill holes in the frame and for my application you will need to change a couple of washers on a bench grinder. If you need something that easily attaches to the truck's existing hardware, spend the extra coin and get one that fits your application. Otherwise, this device costs money and I would have no hesitation in leveraging its advertised power now that I've seen it in action. They will be on every truck I own now that I've seen how well they work.