SuperSprings SSR-207-47 | SumoSprings Rear for Chevrolet Silverado 2500|3500, GMC Sierra 2500|3500, black

very happy so far works good at helping take some of the roughness from pulling my 5th wheel

Night and day difference when towing! I highly recommend…

They help with sag but the ride is horrible. Removed them and put in air ride.

Night & day difference when hauling and going over larger potholes, put these in my HD 2012 single cab

Works great for for the right person. I have a 2021 GMC 2500. It took me 5 minutes to pop out the stock bump stops and put the super springs in. I loaded the bed with 2400 pounds of concrete bags, and I only had 2 inches of total squat. (1.25 inch gap between the super springs and axle... And then about 1 inch of compression on the springs with 2400 loaded). The truck drove like it had nothing loaded in the bed. These are perfect for me, but if you're looking for fancy air bags then go ahead and get them!

If your truck is leveled like mine, these Sumo Springs won’t provide much support to keep the truck level under weight. For the amount of weight I haul or tow, truck squats a minimum of 1/2-3/4” which many might not consider to be bad, but I like to ride level. I know for a fact that the truck would squat more than that without them in place, so they definitely provide some support.The conclusion I would draw on these Sumos is that they’re meant to provide much better results on trucks with the factory rake in place. Whether that rake is 2.25” (which was mine before leveling), or more, their function is to support the factory leaf springs; not take up the majority of the weight like airbags would.I ended up installing a set of ReadyAir airbags which work phenomenal in my leveled application, but still kept the Sumo Springs on the truck. I found that the Sumos definitely improved the ride quality in the rear end by eliminating that bottoming out effect both loaded and unloaded. Not to mention, there’s not much of that “bouncing” effect either. You don’t feel them during normal driving which is a huge plus. You know they’re working when you see vehicles in front of you bottoming out, but when you go over that same dip/bump, you practically glide right over it with a minor effect.These definitely support the rear shocks in daily driving from incurring too much pressure (for example, from bottoming out and then extending back out to the normal length). In my case, they help to support the airbags from “over compressing” before I get a chance to air them up, or when I’m off roading. Not to mention, they’re somewhat of a back up in case the airbags fail completely.All in all, if your truck is leveled, the Sumos may not be the best solution to keep your truck level under weight unless it’s for the comfort reasons mentioned above. I’d recommend a set of airbags at that point because they offer more adjustability. On the other hand, these will work a lot better with trucks that have a factory rake.If you’re looking for a good set of airbags that won’t affect your ride quality in a negative way, ReadyAir is the way to go. They’re not like traditional double bellow style airbags offered by AirLift, Firestone, and/or PacBrake. They’re of a single sleeve style design which allow you to retain full suspension travel and don’t include that typical “bounce” feeling/effect.

Great product. Have put them on 2 of my 2500hd trucks. Makes a big difference hauling heavy.

This product didn't work as advertised for a 2023 Chevy Silverado 2500 HD. Once installed you could easily remove it with your hand. Could have falling off while driving.