Porterfield Brake Pads for 2003 GMC SIERRA 3500 4WD Compound:R4-E 5" axle tube diameter can

5" axle tube diameter can be easily modified for larger tube diameters

Custom 1997 - 2001 Mercury Mountaineer Base 1964 - 1967 Mercury Villager Base 1966 - 1967 Mercury Voyager Base 1978 - 1979 Mercury Zephyr Z7

1985 Chevrolet C10 Silverado 6

2001 GMC Safari SL 4

higher articulation

Porterfield Brake Pads for 2003 GMC SIERRA 3500 4WD Compound:R4-E 5" axle tube diameter canPorterfield Brake Pads for 2003 GMC SIERRA 3500 4WD Porterfield R4 Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon Kevlar material also allows the