Monroe 34839 Shock Absorber - Front

Monroe Gas-Magnum Shock Absorber 34839

Monroe Gas-Magnum shock absorber 34839 is built for front suspension use on select Chevrolet G10, G20, G30 and GMC G15/G1500, G25/G2500, G35/G3500 vans. It is designed for midsize and full-size truck and van applications where firm control and consistent damping matter without creating a harsh ride.

The Gas-Magnum line focuses on higher fluid capacity and efficient operation, which helps the shock manage repeated suspension movement with less effort. For shoppers searching for a front shock absorber for a Chevrolet G20 or GMC G2500 van, Monroe 34839 is a direct-fit option for the listed applications.

Key Features

• Gas-Magnum shock absorber for front suspension applications
• Designed for midsize and full-size trucks and vans
• Higher fluid capacity than standard 1-inch bore shocks
• Firm control with a controlled ride quality
• Metal dust shield included
• Loop bushing and sleeve mounts at both ends
• Compressed length: 9.93 in.; extended length: 14.63 in.; travel length: 4.7 in.

Product Details

Monroe 34839 uses a loop bushing and sleeve mount design with a 12 mm sleeve ID at the lower mount and a 12 mm sleeve ID at the upper mount. The shock includes a metal dust shield and measures 9.93 inches compressed, 14.63 inches extended, with 4.7 inches of travel. This part cross-references Monroe Shocks & Struts 172286 for the same application.

For buyers comparing front suspension shock absorbers for Chevrolet G30 and GMC G3500 vans, this Monroe Gas-Magnum shock absorber is built to match the listed fitment and suspension geometry. The added fluid capacity helps the shock work more efficiently during load changes and road input.

Common Problems It Can Address

• Excessive front-end bounce over uneven pavement
• Reduced control during braking or steering input
• Harsh or inconsistent ride quality from worn shocks
• Front suspension instability on older vans and trucks
• Loss of damping performance from aging shock absorbers

Installation Notes

Fits 1975-1996 Chevrolet G30, front. Fits 1975-1995 Chevrolet G10, front. Fits 1975-1995 Chevrolet G20, front. Fits 1970-1974 GMC G15/G1500 Van, front. Fits 1970-1974 GMC G25/G2500 Van, front. Fits 1970-1974 GMC G35/G3500 Van, front. Fits 1975-1978 GMC G15, front. Fits 1975-1978 GMC G25, front. Fits 1975-1978 GMC G35, front. Fits 1979-1996 GMC G3500, front. Fits 1979-1995 GMC G1500, front. Fits 1979-1995 GMC G2500, front.

Verify mount style, sleeve dimensions, and compressed/extended length against the vehicle’s existing front shock before installation. Confirm the suspension is supported safely and inspect related bushings and mounting points for wear before replacing the shock absorber.

Quality Assurance

Monroe Gas-Magnum shock absorbers are engineered for truck and van duty with a focus on controlled damping and efficient fluid movement. Monroe lists a limited lifetime warranty on the covered applications for this shock absorber.