KYB 743020 Shock Absorber - Rear

KYB AGX Rear Shock for Mustang

KYB AGX part number 743020 is a manually adjustable rear suspension shock absorber for select Ford Mustang applications. It gives drivers a direct way to tune ride control for street use, spirited driving, or track conditions without special tools.

Key Features

• Manually adjustable performance damping for enthusiast-focused suspension tuning
• Adjustment can add up to 125% more damping force on select Ford Mustang applications
• External adjustment does not require lifting the vehicle or removing the tires
• Precision multi-stage hydraulic valves provide a broad damping range
• Seamless working cylinder and Teflon-coated piston band support sealing and service life
• Dust cover included

Product Details

The KYB AGX line is built for drivers who want more control than a standard OE replacement shock can provide. This rear shock absorber uses a simple external adjustment system, with application-specific knob or screwdriver-slot access, to change both rebound and compression damping together. On a Ford Mustang, that means you can tailor rear suspension response to changing road surfaces, autocross, or track-day conditions while maintaining tire contact and vehicle control. Part number 743020 is designed for rear fitments across 1979-1993 Ford Mustang models listed below, including special handling and Saleen package 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
• Loose or inconsistent rear suspension response during cornering
• Reduced control when driving harder than stock damping allows
• Need for adjustable rear shock tuning without removing the tires
• Mismatch between street comfort and performance driving demands

Installation Notes and Fitment

Fits 1979-1982 Ford Mustang, rear. Fits 1983-1986 Ford Mustang, rear, manually adjustable performance; Special Handling; AGX. Fits 1987-1989 Ford Mustang, rear, manually adjustable performance; w/ Saleen Package; AGX. Fits 1984-1993 Ford Mustang, rear, manual adjustable performance suspension strut.; AGX.

Verify rear suspension configuration and existing mount style before installation. The listed compressed length is 12.13 in., extended length is 20.2 in., and stroke length is 8.07 in. Lower mount type is E2 (12.8 x 38), and upper mount type is S1.

Quality Assurance

KYB is known for suspension components engineered around precise damping control and consistent response. The AGX design uses velocity-sensitive valving to react quickly to changing driving conditions and maintain vehicle control.