Our direct fit gas-charged shock absorbers help to restore your vehicle’s handling and ride quality to just like new.

Direct Fit

Direct fit replacement; not only will the part fit correctly, but it will function correctly.  Many competitors combine applications to cut down on the amount of parts they have to carry. This can result in the following issues: incorrect vehicle height, poor response and an uncomfortable ride.

Rigorously Tested

Rigorously tested and made from higher quality materials than the competition. Our parts are built to have a longer life in any environment or road conditions.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Removing the Rear Shock (0:25)
    • Raise and support the vehicle
    • Place a floor jack underneath the differential to remove pressure from the shocks
    • Place a pair of locking pliers on the shaft of the shock
    • Loosen the 14mm nut
    • Remove the 19mm nut and 18mm bolt on the bottom of the shock
    • Lower the shock down and out
  2. step : Installing the Rear Shock (3:26)
    • Insert the shock into place
    • Place the 18mm bolt into the lower end of the shock
    • Place the washer onto the shaft
    • Place the bushing onto the shaft with the shoulder side up
    • Push the shock down the compress it
    • Lift the shock into place
    • Start the nut on the bottom of the shock
    • Place the bushing with the shoulder down atop the strut
    • Place the washer over the bushing
    • Hand-tighten the 14mm nut
    • Tighten the 14mm nut until the bushings are compressed
    • Preliminarily tighten the lower bolt
    • Lower the jack from the differential after the other side is complete
    • Lower the vehicle to the ground
    • Tighten the lower 18mm bolt

Tools needed for replacement:

    General Tools

  • Hammer
  • Jack Stands
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Vise Grip Pliers

  • Ratchets & Related

  • 1/2 Inch Breaker Bar

  • Sockets - Metric

  • 18mm Socket
  • 10mm Socket

  • Wrenches - Metric

  • 18mm Wrench
  • 10mm Wrench

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Vehicle Fit

  • 2004 Ford F150 Heritage Truck 4 Wheel Drive Shock Absorber for Under 7700LB GVW Rear Driver or Passenger Side
  • 1997-2003 Ford F150 Truck 4 Wheel Drive Shock Absorber for Models Under 7700LB GVW Rear Driver or Passenger Side

This part replaces:

  • Monroe 37134
  • KYB 344375
Part #: 1ASHA00198

Ships Same Day for orders placed by 4 P.M. ET

How-to Video:

(06:31 min)