Bilstein G Series Shock Absorbers are designed for, but not limited to, Stock Cars, IMCA/UMP Modifieds, Midgets, Mini-Sprints, Modified Lites and Dwarf Cars. The 36mm monotube steel body design allows for conversion to coilover applications, when necessary and is available in 6" and 7" stroke lengths. It is a sealed unit that you can expect Bilstein's famous consistent, fade-free performance from. The design allows for low rod pressure, reducing the gas spring effect, and making it much easier to tune spring/valving rates. It's a lightweight shock that won't weigh heavily on your wallet! PartNumber : bilF4-BE3-C231-H1 Description : G Series - Shock Absorber Series : G Series Boot Included : No Internal Design : Monotube Lower Mount Type : Eye 12.7mm Upper Mount Type : Eye 12.7mm *Collapsed Length (IN) : 12.68 *Extended Length (IN) : 19.86 Finish : Yellow Paint *Collapsed Length (MM) : 322.0 *Extended Length (MM) : 504.5 *Compression @0.26m/s : 670 *Rebound @0.26m/s : 865 Valving Identifier : 1090 Title : Bilstein Shock Absorbers Collapsed Length (IN) : 12.68 Collapsed Length (MM) : 322 Compression @0.26m/s : 670 Extended Length (IN) : 19.86 Extended Length (MM) : 504.5 Rebound @0.26m/s : 865 Adjustable Damping : Non-Adjustable Body Design : Smooth Body (Non-coilover) Body Diameter (ID) : 36mm Body Material : Steel Lower Mount Type : 1/2in Heim Piston Type : Digressive Upper Mount Type : 1/2in Heim California Proposition 65 : WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov Suspension::Shocks and Struts