Monroe 58575 Suspension Shock Absorber and Coil Spring Assembly - Front

Load Adjusting Front Shock for Heavy Loads

Monroe 58575 is a load adjusting shock absorber for front suspension applications on select Chevrolet G10 and G20 vans and GMC G15/G1500 and G25/G2500 vans. It uses a heavy-gauge calibrated spring to add control as cargo weight, towing demand, and road conditions change.

Key Features

• Load adjusting shock absorber with integrated coil spring assembly
• Heavy-gauge calibrated spring responds to changing load and road conditions
• Front position fitment for towing and hauling applications
• Metal dust shield helps protect the shock assembly
• Loop bushing and sleeve mounts at both ends
• Compressed length: 9.375 in.; extended length: 14.5 in.; travel length: 5.125 in.
• This part cross-references Four Seasons 58575 for the same application.

Product Details

The Monroe Load Adjusting Shock Absorber line is built for light trucks and vans that see changing payloads. Part number 58575 adds spring-assisted support to the front suspension, helping maintain more consistent control when a Chevrolet G10, Chevrolet G20, GMC G1500, GMC G2500, GMC G15, or GMC G25 is carrying cargo or pulling a load. The loop bushing and sleeve mount design, along with the metal dust shield, supports durable service in demanding front-end suspension use.

Fits 1975-1995 Chevrolet G10, front. Fits 1975-1995 Chevrolet G20, front. Fits 1979-1995 GMC G1500, front. Fits 1979-1995 GMC G2500, front. Fits 1975-1978 GMC G15, front. Fits 1975-1978 GMC G25, front. Fits 1971-1974 GMC G15/G1500 Van, front. Fits 1971-1974 GMC G25/G2500 Van, front. Fits 1970 GMC G15/G1500 Van, front. Fits 1970 GMC G25/G2500 Van, front.

Common Uses

• Front-end sag when towing or hauling cargo
• Excessive bounce after load changes
• Reduced control on uneven roads with added weight
• Suspension instability in vans used for work or transport
• Need for a load-adjusting front shock on select Chevrolet and GMC vans

Installation Notes and Tips

Verify upper and lower mounting codes LS37 before installation and confirm compressed and extended lengths against the vehicle’s suspension geometry. This shock uses a loop bushing and sleeve mount at both ends, so inspect the mounting points, bushings, and sleeves for wear before assembly. Confirm front-position application and check vehicle notes for towing and hauling or suspension configuration requirements.

Quality Assurance

Monroe manufactures the 58575 as part of its Load Adjusting Shock Absorber line for vehicles that see variable loads. The calibrated spring and shock assembly are engineered to provide added control as operating conditions become more demanding.