Monroe
Gas-Magnum Shock Absorber

Monroe 34656 Shock Absorber - Rear

Brand Monroe 34656
Position Rear
S4
Compressed Bumper Stop No
Compressed Length 14.375
Dust Shield Yes
Dust Shield Material Metal
Extended Bumper Stop No
Extended Hydraulic Lockout No
Extended Length 24.25
Lower Mounting Code LS26
Lower Mounting Type Loop Bushing & Sleeve Mount - 12MM Sleeve ID X 1.1/2" Sleeve OAL
Parts Pack P01135
Travel Length 9.875
Upper Mounting Type Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch
Product line Gas-Magnum Shock Absorber
Fits Ford · 14 vehicles

Gas-Magnum design. Provides firm control without a harsh ride.

High fluid capacity. Up to twice the fluid capacity of standard 1-in. bore shocks.

Metal dust shield. Helps protect the shock absorber from road debris.

Cross-references KYB 344374, Rancho RS55236 and 58778 for the same application. See all 5.

$55.51Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Shock Absorbers are typically replaced in pairs, axle by axle.
Order total $55.51
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Monroe Gas-Magnum Shock Absorber 34656

Monroe Gas-Magnum Shock Absorber 34656 is built for rear suspension control on midsize and full-size trucks and vans. It delivers firm damping without a harsh ride, with a design that uses greater fluid capacity than a standard 1-inch bore shock for more efficient operation.

Key Features

  • Rear suspension shock absorber for truck and van applications
  • Gas-Magnum shock absorber line for controlled ride quality
  • Compressed length: 14.375 in.
  • Extended length: 24.25 in.
  • Travel length: 9.875 in.
  • Metal dust shield included
  • Upper mount: stem mount, 2.3/8 in. stem length x 3/8 in.-16 thread pitch
  • Lower mount: loop bushing and sleeve mount, 12 mm sleeve ID x 1.1/2 in. sleeve OAL

Product Details

Monroe Gas-Magnum Shock Absorber 34656 is engineered for rear suspension service where load control and ride stability matter. The larger fluid capacity helps the shock work with less effort, which supports consistent damping on Ford F-150 Heritage, Ford F-150, and Ford F-100 Ranger rear applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Excessive rear-end bounce over uneven pavement
  • Reduced control when carrying cargo or towing
  • Rear suspension instability during braking and cornering
  • Harsh or inconsistent damping from worn shock absorbers
  • Noise or contamination concerns at the shock body from road debris

Installation Notes

Compatible With rear positions only. Fits 2004 Ford F-150 Heritage, rear; Fits 1997-2003 Ford F-150, rear; Fits 1997-2001 Ford F-100 Ranger, rear. Verify the mounting style, compressed length, and extended length against the existing shock before installation. Confirm the vehicle is not equipped with the excluded 7,700 GVW configuration listed in the fitment notes.

Quality Assurance

Monroe Gas-Magnum shocks are part of Monroe’s suspension lineup for truck and van service, with application-specific dimensions and mounting details that support accurate replacement selection. Part number 34656 is listed for the rear suspension applications shown above.

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypePositionNotes
2004FordF-150 HeritageXLTRWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
2004FordF-150 HeritageXLRWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
2003FordF-150RWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
2002FordF-150RWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
2001FordF-100 RangerRWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
2001FordF-150RWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
2000FordF-100 RangerRWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
2000FordF-150RWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
1999FordF-100 RangerRWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
1999FordF-150RWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
1998FordF-100 RangerRWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
1998FordF-150RWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
1997FordF-100 RangerRWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
1997FordF-150RWDRearExcept 7,700 GVW; Premium; Limited Lifetime Warranty; Gas-Magnum Shock Absorber
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
KYB — 344374Rancho — RS5523658778HD12140873RS5236