For 1975 2000 Chevy GMC K Series Pickup Class 3 Trailer Hitch+2" Towing 1986 Chevrolet K 10 Classic Auto Mall Rust Buster Front Frame Repair Kit For 1973 1987 Chevy & GMC K Series Performance Parts Teyseer Store Teyseer Motors Amazon.com: Detroit Axle 4pc Front Struts Rear Shocks Kit for 15 19 Belltech Rear Lowered Shock Absorber NitroDrop2 Series for 73 86 K5. Skyjacker Suspensions offers you a high quality shock absorber with true velocity sensitive valving. Shock absorbers, or spring dampers as it is called everywhere else except in the U. S., control the rate at which suspension springs compress and rebound. As the shock is pushed together, this is called bump or compression. As the shock expands, this is called rebound or extension. Absorbing the shock of bumps and suspension loading is actually performed by the springs in the suspension. The shock's real job is controlling the energy stored in the springs. Features: Multi Stage Velocity Sensitive Valving Twin Tube Construction 5 8 in. Diameter Hardened And Double Chrome Rod Red Polyurethane Bushings Includes Red Boot 15 Other Colors Available Limited Lifetime Warranty Position: Front and Rear Series: Nitro 8000 Color: White Boot Color: Red Stroke: 13. 73 Inch Extended Length: 34. 0 Inch Collapsed Length: 20. 27 Inch Sold As: Each