So recently I was looking at the rear of my truck and it looked like the shock absorbers were bent. I looked at them and realized I have a coil spring around my shock absorber. The coil spring is rubbing against the shock absorber. I took my truck to a mechanic friend, he looked at it with a little puzzled face on his face. He has a silverado himself and he doesn't have the coil springs on his. I have been problems with the rear end of my truck feeling like it's coming off the ground when I go over bumps at a slow speed. I told my mechanic that and he really highly suggested me buying Rancho shocks and putting on it. SO.....does anyone else have this on their trucks? Ever had this problem? Rancho shocks good???