Took a few hours to install. I routed the hoses to the rear license plate brackets and covered the valve stems with black caps. There was a slow leak on the right side which caused a rattle as the mount was allowed to move too freely so I had to reattach the air hoses. It's been a few months and they're holding 5psi with no problem. Overall they are great for leveling a truck when towing or hauling. When not in use they lift my butt up a bit as the instructions say to keep them slightly inflated but I don't mind that. Just something to know if you want your truck to be perfectly level front and back. You may also need to adjust your headlights.