I don't slam it, but just about everyone else does. Everyone else assumes its like new cars that actually need to be pushed down. I have never had a new 240, so I am not even sure how stong the shocks should be. I am not sure if new shocks would help, and I was wondering if anyone had tried using 2 1975 shocks, on the later models. I am not even sure if they would fit but since the 75 wagons only had one shock I am guessing they are much stronger than the later models with 2 shocks.