Monroe 32231 Suspension Shock Absorber - Rear

Monro-Matic Plus Rear Shock Absorber

The Monroe Monro-Matic Plus Shock Absorber, part number 32231, is built for rear suspension service on select Ford trucks and Super Duty applications. It uses nitrogen gas charge and Velocity Proportional Valving (VPV) to help deliver more controlled ride response at an economical price.

Key Features

• Monroe Monro-Matic Plus shock absorber for rear suspension use
• Nitrogen gas charged for consistent damping response
• Velocity Proportional Valving (VPV) technology for improved comfort and control
• Compressed length: 13.375 in.; extended length: 22.875 in.
• Travel length: 9.5 in.
• Metal dust shield included
• Upper mounting type: loop bushing mount with 5/8 in. bushing ID and 1.5/16 in. bushing OAL
• Lower mounting type: loop bushing and sleeve mount with 12 mm sleeve ID and 1.1/2 in. sleeve OAL

Product Details

Monroe 32231 is a rear suspension shock absorber engineered for Ford F-350 Super Duty, Ford F-150, Ford F-250, and Ford F-350 applications listed below. The Monro-Matic Plus line focuses on practical ride improvement by combining gas-charged construction with VPV tuning, which helps the shock respond to changing road inputs without adding unnecessary cost. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Shock Absorber Helps Address

• Excessive rear-end bounce over uneven pavement
• Reduced control after worn shock absorber replacement
• Harsh or inconsistent rear ride response
• Rear suspension instability during load changes
• Noise or vibration associated with degraded damping performance

Fitment and Installation Notes

• Fits 1999-2015 Ford F-350 Super Duty, rear
• Fits 1996 Ford F-100 Ranger, rear
• Fits 1985-1996 Ford F-150, rear
• Fits 1992-1996 Ford F-250, rear, without 8,600 lb GVW
• Fits 1980-1991 Ford F-250, rear
• Fits 1987-1991 Ford F-350, rear
• Fits 1980-1983 Ford F-350, rear
• Fits 1984-1986 Ford F-350, rear, with Single Rear Wheels (SRW)

Verify compressed and extended length, mounting style, and rear suspension configuration before installation. This Monroe 32231 shock absorber uses loop-style upper and lower mounts, so matching the sleeve and bushing dimensions to the vehicle is important for proper fitment on Ford F-150, Ford F-250, Ford F-350, and Ford F-350 Super Duty rear applications.

Quality Assurance

Monroe Monro-Matic Plus shocks are engineered with gas-charged construction and VPV tuning to support consistent ride performance across the listed Ford truck applications. Part number 32231 is built for direct replacement use where the specified mounting and dimensional requirements match the vehicle.