Comp Cams FORD 3.8L-4.2L STEEL RETAINER 4G4RBF COMP Cams­® Part# 786-1

COMP Cams­® Part# 786-1

The Front Frame Gussets are designed to add extra strength and bracing to this area so you can run your aftermarket bumper with confidence

Upgrade your Wrangler JL Unlimited with Artec Industries' sliders

but the heavier coils in front

4:10 or lower with good intake & exhaust

Comp Cams FORD 3.8L-4.2L STEEL RETAINER 4G4RBF COMP Cams­® Part# 786-17 Steel Retainers: Stock Spring Dia. Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. New COMP Cams Steel Retainers are the perfect solution to this problem. COMP engineers used 3D CAD with FEA to design retainers with a modern and advanced contoured top profiling for lower stress, increased lift and a reduction in mass. The retainers are CNC machined to exact tolerances using CAD CAM