Moog K6559 Leaf Spring Shackle Bushing - Rear, Rear Lower or Rear Upper Rearward

Moog K6559 Leaf Spring Shackle Bushing

Moog K6559 is a leaf spring shackle bushing built for rear suspension service on classic Chevrolet and Pontiac applications. It uses steel clad rubber construction and meets or exceeds OE manufacturer specs for a direct-fit replacement focused on suspension control and durability.

Key Features

• Steel clad rubber construction for strength and vibration isolation
• Leaf spring bushing design for rear suspension service
• Meets or exceeds OE manufacturer specs
• Designed for vehicles with a 3.740-inch leaf spring width
• Inner diameter: 0.550 inch; outer diameter: 1.560 inch; length: 1.870 inch
• Compatible with rear lower and rear upper rearward suspension positions, depending on application

Detailed Description

This Moog K6559 leaf spring bushing is engineered for rear suspension repair where worn shackle bushings can affect ride quality and axle location. The steel clad rubber design helps maintain suspension alignment while reducing unwanted movement at the leaf spring connection point. Moog’s design approach focuses on extending service life and simplifying replacement, making this part a practical OE-style choice for restoration and maintenance work.

Compatible With 1967-1980 Chevrolet Camaro, rear lower; 1971-1976 Chevrolet Caprice, rear; 1971-1976 Chevrolet Impala, rear; 1975-1976 Pontiac Bonneville, rear; 1971-1972 Pontiac Bonneville, rear; 1971-1976 Pontiac Catalina, rear; 1971-1975 Chevrolet Bel Air, rear; 1971-1974 Pontiac Parisienne, rear; 1967-1970 Chevrolet Bel Air, rear upper rearward; 1967-1970 Chevrolet Caprice, rear upper rearward; 1967-1970 Chevrolet Impala, rear upper rearward; and 1967-1969 Pontiac Firebird, rear lower. This part cross-references Timken HB1003 for the same application.

What It Helps Address

• Rear suspension looseness from worn leaf spring bushings
• Clunking or shifting at the shackle connection
• Excess movement in the leaf spring mounting point
• Ride instability caused by deteriorated rubber bushings
• Restoration work on classic Chevrolet Camaro, Impala, Bel Air, and Pontiac Firebird rear suspension systems

Installation Notes and Tips

Verify the leaf spring width, bushing dimensions, and suspension position before installation. This Moog K6559 bushing does not include hardware, so reuse or replacement of related mounting components should be confirmed during service. Because fitment varies by model and rear suspension location, match the vehicle year, make, model, and position exactly to the application listing.

Quality Assurance

Moog is known in chassis service for continual design updates that improve part life and make replacement work more straightforward. K6559 meets or exceeds OE manufacturer specifications and is built for direct replacement use in the listed rear suspension applications.