6/19/2016--- I installed this on a 2015 Ram 2500 Mega Cab with the 6.4L V8 Hemi with a payload capacities just shy of 3,000 lbs. I bought these air bags to prevent my truck from squatting while hauling water and pulling my trailers. First off, I love the system and the simplicity of it all. I recommend these airbags to anyone looking to prevent their trucks from sagging under heavy loads. So why 4 stars? Well, these air springs state they have a load leveling capacity of up to 5000 lbs but I find that hard to believe. In the directions it states to inflate the air bags until you achieve your normal ride height. For my truck from the top of my rear tire, to the bottom of the corresponding fender its 10.5 inches. When I haul water I can't get above 9 inches of clearance with 95 psi. (Max is 100). I haul just less than 350 gallons of water as that's the max capacity of my tank. A gallon of water weighs approximately 8 lbs so that's roughly 2800 lbs. As per the manual it states that "The springs in this kit will support approximately 40 lbs of load (combined on both springs) for each 1 PSI of pressure." This brings up two issues. First, the fact that 40 lbs * 100 psi = a max load leveling of 4000 lbs NOT 5000 lbs and second, that I should only need about 70 psi (give or take) to level my truck with the water tank... So why can 95 not get the job done? Because of these issues I give 4 of 5 stars. Installing the air springs was fairly simple, however the directions where not exactly clear and resulted in a lot of wasted time, checking, then rechecking to make sure everything was correct. So even though the process was simple it wasn't exactly easy. If I had to do it again, I could probably do it in about a half hour or just over. The hardest part is understanding how to assemble the air bags before mounting as the parts are slightly different for the left and right side, and the directions don't clearly show which way the plates face per side. I recommend cross referencing the diagram on page 3, even though it doesn't help with side specific parts. As a whole it's simple enough to install that if you have all the tools needed as per the instructions, you should be capable of installing it yourself. One thing the instillation instructions didn't mention is the use of a Air Brake Anti-Freeze, this additive helps prevent condensation, and moisture buildup inside of the air bags thus stopping potential damage as well as ice blocks inside the air lines. If you decide to purchase the wireless air compressor model # 7200 (which works great by the way) the instructions on that mention using "Gunk" brand Air Brake Anti-Freeze. But in order to add it when the air bags are installed, you practically have to completely remove them. So its best if you pick some up before you assemble the air bags if you live in an area that gets below freezing. See attached image for directions. After I installed the air bags, I had to plan on where to route my air lines. I had bought the air bags in conjunction with the wireless air kit mentioned above, so I knew I wouldn't have to fill them manually so I wouldn't need the included air valves. But based of someone else's review I decided it was best to just do it anyway and good thing to because the compressor that was sent to me had a piece broken off and wasn't usable. And I had to manually fill the air bags for the week it took Air Lift to send me a new compressor. 10 of 10 on their customer service. Anyway, the instructions showed a few different places you could mount the air valves but I ended up putting them about a food behind my rear tires mud flaps because there was already a hole there symmetrical on both sides of the truck. I just had to make the hole a little larger to fit the air valve and it was perfect. Not really sure what else to say besides that If you've been thinking about getting air bags because you haul, or tow a lot then you will be pleased with this set. NOTE: These air bags do not increase the payload capacity of your truck. They only effect ride quality, and height. It's not only the suspension that limits the payload of your truck its also the tires, wheels, hubs, axle. Even if they are all rated for more than what your truck is, the frame itself may not be. The payload capacity is a number that cant be fudged a little every now and then after all it is only a "Safe working load" but don't buy these air bags thinking your puny 1/4 ton truck can suddenly haul anything. 3/11/2019--- I've had these airbags for almost 3 full years now, and every time I go to use them I'm thankful I bought them. I haven't had any issues with the air bags at all, and they're still holding pressure without any leaks. There are no signs of cracking, stress or wear in general.
