Proform Shaft Mount Rocker Arm - 1.65 Ratio - Full Roller - Purple - Big Block Buick HSXSM11SASM61 Must be used with XP

Must be used with XP rear torsion arms

Reverse Gear

Our Stage II Ladder bar suspension kit is our most popular ladder bar kit for most applications where a narrowed factory frame or new sub frame is not planned

Select the appropriate body length "A" and spring height "B" combination to provide the desired thickness range -

8 in Diameter

Proform Shaft Mount Rocker Arm - 1.65 Ratio - Full Roller - Purple - Big Block Buick HSXSM11SASM61 Must be used with XPProduct 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