Monroe 33128 Suspension Shock Absorber - Rear

Monro-Matic Plus Rear Shock Absorber

The Monroe Monro-Matic Plus Shock Absorber, part number 33128, is a rear suspension shock built for long service life and consistent ride control. It uses nitrogen gas charge and Velocity Proportional Valving (VPV) to help smooth out road inputs on full-size Ford, Mercury, and Lincoln rear suspension applications.

Key Features

• Monroe Monro-Matic Plus Shock Absorber, part number 33128
• Nitrogen gas charged for stable damping response
• Velocity Proportional Valving (VPV) for more controlled ride comfort
• Rear shock absorber for select Ford Crown Victoria, Grand Marquis, LTD Crown Victoria, LTD, Mercury Colony Park, Mercury Grand Marquis, and Lincoln Town Car applications
• Metal dust shield included to help protect the shaft area
• Upper stem mount with 2.3/8" stem length x 3/8"-16 thread pitch
• Lower mounting code L1/CP1
• Compressed length: 12.125 in; extended length: 19.5 in; travel length: 7.375 in

Product Details

Monro-Matic Plus is Monroe’s economy-focused shock absorber line for drivers who want dependable rear suspension control without moving to a performance-tuned setup. This 33128 shock absorber uses VPV technology to vary damping response with suspension speed, helping maintain a controlled feel over everyday road conditions. It is a direct rear shock application for many Ford Crown Victoria and Grand Marquis models, along with Lincoln Town Car and Mercury Colony Park coverage in the listed years.

This part cross-references KYB (e.g., 343135, KG5522) for the same application.

What It Helps Address

• Excessive rear-end bounce after bumps
• Reduced ride control from worn shock absorbers
• Rear suspension instability on rough pavement
• Uneven damping response during normal driving
• Noise or harshness caused by aging rear shocks

Installation Notes

Fits 1992-2002 Ford Crown Victoria, rear, except Handling Package; except Taxi Package; without Performance Package. Fits 2001-2002 Ford Grand Marquis, rear, without Police Package; except Taxi Package; without Performance Package; without Handling Package. Fits 1981-2002 Lincoln Town Car, rear, except Commercial Chassis. Fits 1992-2002 Mercury Grand Marquis, rear, without Police Package; except Taxi Package; without Performance Package; without Handling Package. Fits 1992-2000 Ford Grand Marquis, rear. Fits 1987-1991 Ford LTD Crown Victoria, rear. Fits 1987-1991 Mercury Colony Park, rear. Fits 1983-1991 Mercury Grand Marquis, rear. Fits 1983-1986 Ford LTD, rear, without Police Package.

Verify the upper stem mount and lower L1/CP1 mounting points before installation. Compare the compressed and extended lengths to the original shock to confirm suspension travel and fitment on the vehicle.

Quality Assurance

Monroe engineers the Monro-Matic Plus line for extended mileage service with nitrogen gas charge and VPV damping control. Part number 33128 is built for the listed rear applications and follows Monroe’s established shock absorber design standards.