It's ok but they only solved half of my problem so be careful if you try to solve the same problem as me. It should be noted that my truck is permanently equipped with a construction machine cover at the rear. It's all aluminum so I'm not sure how much it weighs, it can hold eight hundred pounds. They're just glorified fenders, so they solved the problem of my truck going down on the factory fenders, but mostly because it's easy to do. on those big huge fenders. Now I have a new problem: my truck's rebound is bouncing off these spongy pads combined with worn factory springs. This is after I installed the new shock absorbers at the same time as installing those "springs". I could try a beefier adjustable damper like the Rancho 9000, but it's still just throwing darts and hoping for the best. All the time I just needed new rear leaf springs because the factory springs were shot. And they always sucked anyway, because Toyota naturally put springs on their trucks that were too soft. I've had plenty of Toyotas over the years and have always hated ridiculously spongy rear springs when you're loading over a hundred pounds on the back. I mean it has to be a truck right? In any case, I'm not trying to write a Toyota review. The main problem with them, and where they lack compared to air suspension systems, is that they are not connected to the vehicle frame. The fact that AirRide air springs and all are bolted to the frame (top) and axle (bottom) makes a world of difference to overall ride control. This fact alone distinguishes them fundamentally from real air springs. They only solve half the problem, at least in my case. Your case may be different. So bottom line, if it works for you, it's not a bad product, but the general drive control problem is a bit more complicated than they can solve in most cases. If you have spare leaf springs, or yours are in really good condition, or just aren't Toyota leaf springs, you can do better. But be warned, if you have a factory-sprung Toyota or are just a control (suspension) addict like me, this may not be in front of you. I will be returning mine and buying air springs because they are still cheaper and easier to install than leaf springs which would be the only other choice. Aside from the above issues, the reason I gave it two stars is the price. They should be about half the price they are. If they really solved my problem and I didn't have to send them back I would give them a four or five depending on their performance.