Comp Cams FORD 3.8L-4.2L STEEL RETAINER 4G4RBF but the heavier coils in

but the heavier coils in front

Custom 2004 Chevrolet Silverado 2500 WT 2001 - 2005 Chevrolet Silverado 2500 HD Base 2015 - 2019 Chevrolet Silverado 2500 HD High Country 2001 - 2006 Chevrolet Silverado 2500 HD LS 2001 - 2019 Chevrolet Silverado 2500 HD LT 2007 - 2019 Chevrolet Silverado 2500 HD LTZ 2003 - 2019 Chevrolet Silverado 2500 HD WT 2007 Chevrolet Silverado 2500 HD Classic WT

Large doors and windows frame panoramic views

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

COMP Cams­® Part# 786-1

Comp Cams FORD 3.8L-4.2L STEEL RETAINER 4G4RBF but the heavier coils in7 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