Raybestos FRC4158 R-Line Replacement Remanufactured Front and Rear Disc Brake Calipers are engineered to deliver safe, leak-free performance. Featuring OE-matched design and specifications, these remanufactured semi-loaded calipers include EPDM70 rubber components for superior heat resistance, performance and durability. Seals, boots, bleeder screws and o-rings are replaced to guarantee leak-free performance, and pre-lubricated guide pins are also included to help with installation. Raybestos works tirelessly to ensure their calipers are tested to the highest multinational industry standards to ensure you receive a high-quality product. The testing parameters include testing for extreme pressure, cyclic durability under extreme temperatures, piston retraction, fluid displacement and residual drag torque and rubber aging and degradation resistance. Vehicle fit: Chevrolet C30 1979-1986, C3500HD 1991-2002, C50 1988-1990, C5500 Kodiak 1990, C60 1983-1989, C6500 Kodiak 1990-1994, C70 1983-1989, G30 1979-1996, K30 1978-1986, P30 1979-1999, R30 1987-1988, R3500 1989-1991, V30 1987-1988, V3500 1989-1991; Dodge W250 1990-1993, W350 1990-1993; Freightliner MT35 1997-2005, MT45 1998-2005; GMC C3500 1979-1986, C3500HD 1991-1993, 1995-2002, C5000 1988-1990, C5000 Topkick 1990, C6000 1983-1989, C7000 1983-1989, G3500 1979-1996, K35 1978, K3500 1979-1986, P3500 1979-1999, P4500 1984-1990, R3500 1987-1991, Savana 3500 1996, V3500 1987-1991; International 1452SC 1987-1992, 1652SC 1986-1998, 1654 1981, 1983-1989, 1724 1983-1984, 1754 1983-1987, 1824 1983, 1854 1983-1989, 3000FE 1997, 3400 1996-1997, 3600 1992-1997, 3700 1990-1994, 3800 1990-1997, 3900FC 1991-1994, 4600 1990-1995, 4600LP 1990-1994, 4700 1990-1997, 4700LP 1991-1997, 4700LPX 1996-1997, 4800 1990-1997, 4900 1990-1997, 7100 1990-1995, M1400 Metro II 1987-1989, M1600 Metro II 1987-1988, S1624 1980-1982, S1654LP 1989, S1723 1983-1985, S1724 1983-1984, S1753 1984-1989, S1754 1983-1989, S1853 1983-1989; Isuzu FSR 1996-2002; Workhorse P30 2000-2003, R32 2003.