Keep a hardworking front end firmly planted with the Monroe Gas-Magnum Suspension Shock Absorber (MPN 34907), engineered for full-size trucks and vans that need firm control without a harsh ride. It installs in the front left, front-forward position as a direct-fit replacement for the 1978-1979 Ford Bronco and 1978-1979 Ford F-150.
Gas-Magnum shocks use a larger bore and a bigger 2-inch reserve tube that hold more oil than standard 1-inch bore shocks, so the shock works more efficiently with less effort. Full-displaced valving on the compression cycle is designed to deliver controlled ride and handling under load.
Worn shocks may show up as excessive bounce, nose dive, or poor tire contact — if the front shock is the cause, this replaces it.
Interchange: 58386 · 76907 · 12140415
This part cross-references / interchanges with the following part numbers:
What vehicles does the Monroe 34907 shock absorber fit?
It is a direct-fit replacement for the 1978-1979 Ford Bronco and 1978-1979 Ford F-150. See the Buyer's Guide tab to confirm the fit for your specific vehicle.
Where does this shock mount on the vehicle?
The 34907 is cataloged for the front left, front-forward position. Order the matching shock for the opposite side if you plan to replace both together.
What makes the Gas-Magnum design different?
It uses a larger bore and a 2-inch reserve tube to hold more oil than standard 1-inch bore shocks, so it works more efficiently for controlled ride and longer service life.
Is this shock gas-charged?
Yes. A nitrogen gas-charge helps maintain tire-to-road contact by reducing aeration and shock fade for improved ride and handling.
What are signs my front shock may need replacing?
Excessive bounce, front-end nose dive under braking, and poor tire contact can be signs. Diagnose the cause first; if the front shock is at fault, this replaces it.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
