The Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precision-sorted needle bearings and hardened Roller tips to better distribute the load and reduce wear for a longer service life. In addition, they work with most diameter springs and retainers. The XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI optimization for endurance, drag and circle track Applications.

This Part Fits:

Year	Make	Model	Submodel
1986-1990,1992	Chevrolet	Caprice	Base
1985-1990,1993	Chevrolet	Caprice	Classic
1986-1988	Chevrolet	Caprice	Classic Brougham
1987-1988	Chevrolet	Caprice	Classic LS Brougham
1985	Chevrolet	Impala	Base
1978-1979	Chevrolet	Malibu	Base
1978-1979	Chevrolet	Malibu	Classic
1978-1979	Chevrolet	Malibu	Classic Landau
1979	Chevrolet	Malibu	Classic Sport
1979	Chevrolet	Malibu	Landau
1979	Chevrolet	Malibu	Police
1979	Chevrolet	Malibu	Sport
1979,1985-1988	Chevrolet	Monte Carlo	Base
1978-1979	Chevrolet	Monte Carlo	Landau
1986-1988	Chevrolet	Monte Carlo	LS
1978	Chevrolet	Monte Carlo	Sport
1986	Pontiac	Bonneville	Base
1986	Pontiac	Bonneville	Brougham
1986	Pontiac	Bonneville	LE
1986-1987	Pontiac	Grand Prix	Base
1986-1987	Pontiac	Grand Prix	Brougham
1986-1987	Pontiac	Grand Prix	LE
1985-1986	Pontiac	Parisienne	Base
1985-1986	Pontiac	Parisienne	Brougham