Generally when your shocks wear out the ride become spongy correct? My truck is riding worse and worse, and it feels like driving a 1950's tractor with no suspension down the road. When it hits, it hits hard. I currently have pro comp es3000 shocks back there, they look rusty so perhaps they have seized up? I have a 5" block and add a leaf in the back. I have had it this way for close to three years and it once road like a dream, now like a tank. Does it sound like a shock issue or should I be looking somewhere else? I was thinking of yanking them out tonight and seeing how they feel. Can they get stiff as they get old? 2003 chev 1500 half tonne. Thanks guys! any help is appreciated!