Proform Shaft Mount Rocker Arm - 1.65 Ratio - Full Roller - Purple - Big Block Buick HSXSM11SASM61 Reverse Gear

Reverse Gear

Blower Drive Service Supercharger Pulley

Crew / Quad Cab

SportMax Lite Direct Lube

Must be used with XP rear torsion arms

Proform Shaft Mount Rocker Arm - 1.65 Ratio - Full Roller - Purple - Big Block Buick HSXSM11SASM61 Reverse GearProduct Description: Rocker Arm Shaft Mount 1. 65 Ratio Full Roller Aluminum Purple Anodized Big Block Buick PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM Parts (Specialty Auto Parts U. S. A., Inc.) is a leader in the High Performance Automotive Aftermarket by engineering and manufacturing creative products from intelligent concepts. Our goal is to provide the performance enthusiast with