When your coil springs sag, the shock absorber height is reduced which can cause your 1958, 1959, 1960, 1961,1962, 1963, 1964 Impala, Bel Air, Biscayne, or Delray to "bottom out" against the bumpers when you travel over a bump in the road or make a sharp turn which can result in extreme tire wear and prematurely worn suspension bushings.
| Make | Model | Years |
| Chevrolet | Bel Air | 1958 - 1964 |
| Chevrolet | Biscayne | 1958 - 1964 |
| Chevrolet | Brookwood | 1958 - 1960 |
| Chevrolet | Del Ray | 1958 |
| Chevrolet | Impala | 1958 - 1964 |
| Chevrolet | Kingswood | 1959 - 1960 |
| Chevrolet | Nomad | 1958 - 1960 |
| Chevrolet | Parkwood | 1959 - 1960 |
| Chevrolet | Yeoman | 1958 |
