Thomas ThompsonJune 18, 2018 at 7:21 am 5 out of 5 I utilize the SumoSprings (Heavy Duty) on a 2014 Chevrolet Silverado with 120k+ Miles, an ARE truck topper, long distance road travel and towing/hauling at max GVWR. I have utilized ‘leaf helpers’ on previous work trucks, but this is far better for a daily driver. The body roll/‘Cadillac’ sway is removed and the feeling of a stabilized rear end (towing with a weight distribution hitch) is very noticeable and desired. When loading the rear end, you don’t get the hard bump stop feel and bottoming out to the ‘pig’/rear end as with a stock bump stop. I utilize the SumoSprings on the rear and the Coil SumoSprings on the front. It will change the trucks feel and ride to a much more desirable ride, if you tow/haul and just as a daily driver. I’d recommend these products to anyone with novice installation experience and as a ‘must have’ upgrade for the life of a truck, out of the box/factory. Worry free; Always nice when traveling and towing/hauling for a long 4+ hour trip away from home. *Great product with easy installation and maintenance free.