Keep the rear of your work truck planted with the Monroe Gas-Magnum Suspension Shock Absorber 34930. This rear suspension shock installs as a direct-fit replacement for the 1980-1989 Ford F-150, the 1980-1991 Ford F-250, the 1980-1997 Ford F-350, and the 1999-2004 Ford F-450 Super Duty and F-550 Super Duty — see the Buyer's Guide tab for engine-level fitment.
- Designed for trucks and vans: engineered for hardworking full-size trucks and vans with full-displaced valving on compression cycles to deliver controlled ride and handling.
- Built to last: on non-dust-shield units, a heavy-duty nitrocarburized rod and a sintered iron piston add durability, while a self-lubricating fluid seal reduces friction against the piston rod.
- Consistent ride: OE all-weather fluid carries special modifiers to handle extreme temperatures and help smooth rod reaction.
- Improves performance: a nitrogen gas-charge helps maintain tire-to-road contact by reducing aeration and shock fade.
A larger bore and a bigger 2-in. reserve tube hold more oil — up to twice the fluid capacity of standard 1-in. bore shocks — so the shock works efficiently for firm control without a harsh ride. Sold individually; replacing both rear shocks together as a matched pair is recommended for balanced ride control. Backed by Monroe's Limited Lifetime Warranty and exclusive Feel the Difference Guarantee.
Interchange: 52029 · TS3432152B · F81A18080DCA · F81Z18125DC · 58456 · 58461 · 58811 · 9160761 · KG5443 · FD136 · 210170 · 32239 · 37038 · ASH23486 · ASH247 · AT610 · AT611 · SH81510 · 76930 · 12140433
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
Where does the 34930 shock install?
It's a rear suspension shock absorber for the listed Ford F-Series trucks. It's sold individually, and replacing both rear shocks together as a matched pair is recommended for balanced ride control.
Which vehicles does it fit?
The 1980-1989 Ford F-150, 1980-1991 Ford F-250, 1980-1997 Ford F-350, and the 1999-2004 Ford F-450 Super Duty and F-550 Super Duty. Check the Buyer's Guide tab for engine details.
What does the nitrogen gas-charge do?
Monroe charges the Gas-Magnum with nitrogen to help maintain tire-to-road contact by reducing aeration and shock fade, which supports more consistent damping.
What are signs my shocks may need replacing?
Excessive bouncing, nose dive under braking, body sway, or uneven tire wear can be signs of worn shocks. Diagnose the cause first, since other suspension parts can produce similar symptoms.
Is the 34930 covered by a warranty?
Yes. It comes with Monroe's Limited Lifetime Warranty and the exclusive Feel the Difference Guarantee.
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