What It Fits
Common applications include select:
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Ford F-250 Super Duty models
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Typically rear position (verify configuration)
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Stock ride height setups
⚠️ Always confirm:
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Model year
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2WD or 4WD
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Front vs rear position
Super Duty configurations vary by year and drivetrain.
What Gas-Magnum Delivers
The Monroe Gas-Magnum line is tuned for heavy-duty applications and offers:
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Increased load-handling control
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Reduced rear squat under towing
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Improved braking stability
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Better control over rough pavement
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Firm, consistent damping
It’s built for durability, not comfort-first softness.
Designed for midsize and full-size trucks and vans, Monroe® Gas-Magnum® shock absorbers provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, they work more efficiently with less effort.
Monroe Gas-Magnum 34687 Ford F-250 Super Duty shock Key Features
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Nitrogen gas-charged design
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Larger bore for improved heat dissipation
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All-weather fluid
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Heavy-duty valving
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Corrosion-resistant finish
Translation: stable when loaded, controlled when empty.
Signs You Need Replacement
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Excessive bounce when towing
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Rear instability under load
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Uneven tire wear
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Harsh bottoming over bumps
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Fluid leakage on shock body
If your F-250 feels sketchy while hauling, don’t ignore it.
MONROE GAS-MAGNUM SHOCK ABSORBERS
Designed for mid to full-size, hardworking pick-up trucks and vans, Monroe Gas-Magnum shock absorbers provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, they work more efficiently with less effort.
Hardworking midsize, full-size trucks and vans can count on Monroe Gas-Magnum shocks to carry the load. Not just for ride comfort, shocks are necessary for the safe handling of your vehicle. By maintaining vertical loads placed up on the tires, shocks help ensure consistent tire-to-road contact. Shocks also help maintain a balanced ride by providing resistance to vehicle bounce, roll and sway as well as brake dive and acceleration squat.
CAUSES & CONSEQUENCES OF SHOCK FAILURE
Like many parts on your vehicle, shocks are subject to wear. Causes include damaged bushings, exposure to the elements, loss of oil viscosity and deteriorated components. Driving with worn shocks can result in problems ranging from reduced braking efficiency, tire wear, loss of stability and damage to other suspension parts.
DIAGNOSING NOISE WITH NEW SHOCKS
If noise is present with a replacement shock absorber, check that the mount is tightened securely and look for other worn suspension parts. Some shock absorbers utilize a “clevis” type mount, which must squeeze the sides of the shock’s “mounting sleeve” very securely in order to prevent noise. Using new hardware and mounting bolts help ensure its tightened securely. Check the brackets to make sure they didn’t get spread apart excessively when the original shock was removed.
IMPORTANCE OF ALIGNMENT
Always perform an alignment whenever replacement shocks, struts or other ride control parts are installed. Camber, toe and caster settings can all be affected by installing new shocks. Failure to make sure the vehicle’s alignment is within factory specifications can lead to problems like premature tire wear.
HOW TO CONDUCT A SHOCK INSPECTION
Shocks may not show any visible signs of wear, make sure to request a ride control inspection every time your vehicle is brought in for service to ensure they’re in optimal operating condition. When inspecting a vehicle’s shocks: assess how the vehicle is used and perform ride and physical evaluations. Get an understanding of the vehicle’s repair history, the way the vehicle handles and its intended use for clues if the shocks might need changing. Next, take the vehicle for a test drive to determine whether the vehicle’s steering, stopping and stability are compromised. Wrap up the inspection with a physical examination for symptoms of wear which may indicate new shocks are required.
Ideal Applications
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Towing trailers
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Hauling payload
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Work trucks
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Fleet vehicles
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Stock-height Super Duty builds
If you’re lifted, verify extended-length options.
Monroe Gas-Magnum 34687 Ford F-250 Super Duty shock Installation Notes
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Replace shocks in pairs
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Inspect leaf springs and shackles
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Verify mounting bushings
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Torque to factory specification
Because worn bushings cancel out new shocks.
Final Verdict
The Monroe Gas-Magnum 34687 Shock Absorber for Ford F-250 Super Duty is a durable, heavy-duty replacement designed for trucks that work. Strong damping, load control, and long-term reliability.
Because heavy trucks need serious suspension.
Plain-O-Helper –
They fit fine and work well. I couldn’t be happier with this product.
richard –
Fit great. And smoothed out ride.
RK Downey –
I bought 4 of these to replace the factory shocks on my 01 f350. I couldn’t be happier with the ride and ease of installation. The old shocks had 80k on them and were worn out. Yes they are yellow and a little bright but they serve their purpose well!
Dan –
Fit a 2002 F250 SuperDuty 4×4. Larger diameter bore than Motorcraft. I usually buy Bilsteins but this price was too good to pass by. I will follow up after they get some miles of use.I would suggest spraying them with clear-coat to slow down the inevitable rust that appears.No fasteners included…just re-use your old ones and be sure to follow torque recommendations for your specific vehicle.
Alyssa’s Reviews –
These are excellent big beefy shocks for a big beefy truck 2001 F350 7.3
Kaleb Jackson –
My father in laws ford f350 dual my really needed rear shocks and these do the job
Lennard Toccaline –
Great
Skeeter –
I bought a used 2002 F250 diesel and it had original shocks on it. I shopped around and decided to go with a name brand for great value. I ordered front and rear shocks, with my prime membership, I had one set delivered the next day and following set within 2 days. I’m no mechanic, but have fixed minor things myself, I decided to attempt replacement myself. I read some forums before doing this and glad that I did, the nut on one was 18mm and other was 15mm. All my metric socket sets skip the 18mm, so I went out and bought a 18mm socket. Removed front tires for replacement of front shocks and for rear, just dropped the spare tire. I had all four changed in little over and hour.
leah madore –
Shocks- buy em!
Great product, service crew were great to deal with and delivery was super fast!
Amazon Customer –
Monroe
Bon produit livré aux dates prévues