FCS 84100 Trunk Lid Lift Support - Rear

Brand FCS 84100
Position Rear
Compressed Length 5.12
Extended Length 7.6
Stroke Length 2.48
Product line FCS
Fits Buick, Chevrolet, Pontiac, and Oldsmobile · 18 vehicles

Trunk lid lift support. Restores smooth, controlled opening and closing.

Compact gas strut design. Provides 2.48 inches of stroke for steady support.

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Rear Trunk Lid Lift Support for GM A-Body Applications

FCS 84100 is a rear trunk lid lift support built for specific 1979-1982 GM rear compartment applications. With a compressed length of 5.12 inches, extended length of 7.6 inches, and 2.48 inches of stroke, it provides the measured travel needed for proper trunk lid support on listed vehicles.

Key Features

  • Part number: FCS 84100
  • Rear trunk lid lift support for listed Buick, Chevrolet, Oldsmobile, and Pontiac models
  • Compressed length: 5.12 in.
  • Extended length: 7.6 in.
  • Stroke length: 2.48 in.
  • Fits rear applications on 1979-1982 vehicles shown below

Fitment Details

  • Fits 1980-1982 Buick Regal, rear
  • Fits 1980-1982 Chevrolet Monte Carlo, rear
  • Fits 1981-1982 Pontiac Grand Prix, rear
  • Fits 1980-1981 Chevrolet Malibu, rear
  • Fits 1980-1981 Oldsmobile Cutlass, rear, Exc. Ciera
  • Fits 1980-1981 Pontiac Grand LeMans, rear
  • Fits 1980-1981 Pontiac LeMans, rear
  • Fits 1979-1980 Oldsmobile Cutlass Salon, rear, Exc. Ciera

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Weak or failing trunk lid support
  • Trunk lid that drops instead of staying open
  • Reduced lift assistance at the rear compartment
  • Inconsistent trunk opening and closing effort
  • Wear-related loss of support on older GM rear lids

Installation Notes and Tips

Verify the compressed length, extended length, and stroke length against the existing support before installation. Confirm rear fitment on the exact year, make, and model listed for Buick Regal, Chevrolet Monte Carlo, Pontiac Grand Prix, Chevrolet Malibu, Oldsmobile Cutlass, Pontiac Grand LeMans, Pontiac LeMans, and Oldsmobile Cutlass Salon. Compare the mounting points and overall dimensions to the original unit to ensure proper alignment.

Quality Assurance

FCS 84100 is cataloged as a direct-fit trunk lid lift support for the listed rear applications and is identified by the FCS brand line for this product family.

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody Type# DoorsPositionNotes
1982BuickRegalCoupe2 DoorRearFCS
1982ChevroletMonte CarloCoupe2 DoorRearFCS
1982PontiacGrand PrixCoupe2 DoorRearFCS
1981BuickRegalCoupe2 DoorRearFCS
1981ChevroletMalibuCoupe2 DoorRearFCS
1981ChevroletMonte CarloCoupe2 DoorRearFCS
1981OldsmobileCutlassCoupe2 DoorRearExc. Ciera; FCS
1981PontiacGrand LeMansCoupe2 DoorRearFCS
1981PontiacGrand PrixCoupe2 DoorRearFCS
1981PontiacLeMansCoupe2 DoorRearFCS
1980BuickRegalCoupe2 DoorRearFCS
1980ChevroletMalibuCoupe2 DoorRearFCS
1980ChevroletMonte CarloCoupe2 DoorRearFCS
1980OldsmobileCutlassCoupe2 DoorRearExc. Ciera; FCS
1980OldsmobileCutlass SalonCoupe2 DoorRearExc. Ciera; FCS
1980PontiacGrand LeMansCoupe2 DoorRearFCS
1980PontiacLeMansCoupe2 DoorRearFCS
1979OldsmobileCutlass SalonCoupe2 DoorRearExc. Ciera; FCS