Seat Shock Absorber Fits John Deere 2510 3010 4000 4010 4020 5010 4430 6030One New Aftermarket Replacement Seat Shock Absorber Assembly Assembly Contains: Spring (R26877), Shock (only) (AR69854), Bushing (R26832), Upper Cap (R27442), Lower Cap (R26879) Tech Info: 7 5 8" Center to Center (Fully Compressed) 10 1 2" Center to Center (Extended) Fits: Fits John Deere Tractor Models 1020, 1030, 1035, 1520, 1635, 2010, 2020, 2030, 2035, 2130, 2135, 2140, 2350, 2440, 2510, 2520, 2550, 2630, 2640, 2750, 2940, 2950, 3010, 3020, 3040,