ROADMASTER ACTIVE SUSPENSION #3611-Y FITS: 2011-2012 FORD F-150 # MK3-XXY

Very happy with these. Were kinda spendy but they proved to be worth it. Installed on my 2013 F-150. Pretty straight forward installation. The instructions contain versions for different makes of trucks so you gotta filter thru to your specific vehicle, there were a few parts provided with the kit that mine didn’t require (bumper stop relocation).The quality is very good and the materials look to be top notch. I measured my height before and after and I gained 1 1/2 “ in height at the 40% setting. Took it for a test drive after installing and the rear axle was noticeably a smoother ride than before. Haven’t towed my trailer yet but right now I’m very happy with them.

Got a great used priced on these. Installed on 2017 F150. The main reason I wanted these over air bags is that they will fit on the springs without altering my husky rear wheel liners. Was a little bummed because the truck did lift 3/4 of an inch at the 25% setting. I do notice smoother shifts just driving the truck around. No squeaks or weird noises. Hauling a bed full of fire wood for about 200 miles this Fourth of July weekend. Will update on handling and ride when I do. Hope this helps. If your an occasional hauler id go for this set up way before air bagsUpdate**********Put about 600 miles on these over the 4th of July weekend. Everything worked well. No issues whatsoever. Had a load of wood in the bed for a couple hundred miles and the truck ran great. I also did some driving in some steep terrain on pretty rutted gravel roads. Truck seems to shift smoother. Other than that I see no difference. I’ve yet to put a heavy load on them but I’m super happy so far. I stand by my recommendation earlier. These are excellent for anyone who isn’t towing crazy heavy loads everyday but does pull some heavy stuff on occasion. Also I think it’s great that these improve performance even when not towing!

2015 F150 4wd towing package, 92k miles. I used my truck to tow and RV for the first 60k miles. Now I primarily carry around 900lbs of rescue gear and a bedslide all the time. I wish I had found these when towing.The first side took 45 minutes to install, I had to figure our a few important items in the installation that were not clear. I also had to remove and re-install it due to an error I made. The second side took less than 10 minutes, including the bump stop spacer. I set the tension at the 25% level.Pulling out of my driveway, I have a quick 6" drop over a 6" span. I also have to exit at an angle. This normally causes the truck to sway back a forth a few times. First thing I noticed was this no longer happened, so obviously the RAS is doing something. On the road there is a noticable improvement. The truck felt better planted, the bumps and potholes (state flower of Washington) no longer made if feel unsettled. While not a sports car, it cornered flatter.The RAS does everything promised, the good reviews are real. The only thing that could be better would be the detail of the enclosed directions.

Maybe I need to check and adjust them. But, I'm not getting as much assistance as I wanted for the trailer tongue weight affect on the rear suspension. It's just a bit of work to make the adjustment. Jack it up on two stands, remove both wheels, check springs and adjust as needed......Better handling is noticed, especially in situation like a freeway cloverleaf on/off ramp at a decent speed (w/out trailer).For the money, it's a good solution.I didn't want to deal with air bags, or with the expense to make an air bag system convenient with the add of on-board compressor.

Very easy to install. Precision engineering and product testing shined through to make this work as advertised. I set mine to 40% (2mm black disk) on a 2017 F-150 RWD and it did raise the rear about an inch. Ride quality is superb and there are no noises coming from the unit itself. However, at the 2mm setting it does significantly increase stiffness and you will hear noises transferring up through the frame/bed when hitting sharp bumps in the road. This was my experience having installed Bilstein 5100s on the front and rear so if you are running stock shocks you may not have a noticeable noise increase over bumps. Overall handling and stance of the truck is much improved, especially if your reason for installing the RAS is to stabilize the truck for hauling and towing.I loved the cushy Buick-like ride of my truck--as it came from the factory--but it was not a good feeling when I was pulling 10,000lbs behind me with surge brakes. I installed the regular Roadmaster kit (not HD) on the maximum setting and lifted the front by 2 inches with the Bilstein 5100 shocks and it transformed my truck into a tow machine.