Energy Suspension Hyper-Flex Front Spring Shackle Bushing Kit - Black / Cadmium - GM Fullsize SUV / Truck 1971-91 HASZF20AM Installation Instructions: Click here

Installation Instructions: Click here

Calibration is as simple as a two mile drive

tube design provides ample exhaust flow to let your classic truck's 283-400 SB Chevy engine breathe easy

00 mm Bore

300TD 1985-1979

Energy Suspension Hyper-Flex Front Spring Shackle Bushing Kit - Black / Cadmium - GM Fullsize SUV / Truck 1971-91 HASZF20AM Installation Instructions: Click hereEnergy Suspension continues to be the World leader in performance polyurethane suspension technology. Dedication to manufacturing and developing superior products has established Energy Suspension as the most asked for name in performance polyurethane components today. The complex and diverse nature of Energy's proprietary Hyper Flex(TM) material requires constant attention to developing the optimum polyurethane formulas. This devotion has produced