Yukon Dura Grip Positraction for Dana 80 / 37 Spline / 4.10 & Up

The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects. Fits Dana Spicer 80. 4.10 and down ratio only. 37 spline. Clutch style positraction. Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth. Yukon recommends the use of high grade Non-Synthetic GL-5 gear oil and two bottles of Yukon LSD (Limited Slip Differential) additive for long life and smooth operation. Part number OILADD. The use of synthetic oil is not recommended and may result in aggressive or noisy operation. D80 37spl 4.10/UP DURAGRIP POSITRACTION; ABS Fitment: 1988 Ford E-350 Econoline Custom 1988 Ford E-350 Econoline XL 1988 Ford F-350 Custom 1988 Ford F-350 XL 1988 Ford F-350 XLT Lariat 1989 Ford E-350 Econoline Custom 1989 Ford E-350 Econoline XL 1989 Ford F-350 Custom 1989 Ford F-350 XL 1989 Ford F-350 XLT Lariat 1990 Ford E-350 Econoline Custom 1990 Ford E-350 Econoline XL 1990 Ford F-350 Custom 1990 Ford F-350 XL 1990 Ford F-350 XLT Lariat 1991 Ford E-350 Econoline Custom 1991 Ford E-350 Econoline XL 1991 Ford F-350 Custom 1991 Ford F-350 XL 1991 Ford F-350 XLT Lariat 1992 Ford E-350 Econoline Base 1992 Ford E-350 Econoline XL 1992 Ford F-350 Custom 1992 Ford F-350 XL 1992 Ford F-350 XLT Lariat 1992 GMC K3500 Sierra 1992 GMC K3500 Sierra SLE 1992 GMC K3500 Sierra SLX 1993 Ford E-350 Econoline Base 1993 Ford E-350 Econoline XL 1993 Ford F-350 XL 1993 Ford F-350 XLT 1993 GMC K3500 Sierra 1993 GMC K3500 Sierra SLE 1993 GMC K3500 Sierra SLX 1994 Ford E-350 Econoline Base 1994 Ford E-350 Econoline XL 1994 Ford F-350 XL 1994 Ford F-350 XLT 1994 GMC K3500 Sierra SL 1994 GMC K3500 Sierra SLE 1994 GMC K3500 Sierra SLT 1995 Ford E-350 Econoline Base 1995 Ford E-350 Econoline XL 1995 Ford F-350 Eddie Bauer 1995 Ford F-350 Special 1995 Ford F-350 XL 1995 Ford F-350 XLT 1995 GMC K3500 Sierra SL 1995 GMC K3500 Sierra SLE 1995 GMC K3500 Sierra SLT 1996 Chevrolet Express 3500 Base 1996 Chevrolet Express 3500 LS 1996 Ford E-350 Econoline Base 1996 Ford E-350 Econoline XL 1996 Ford F-350 Special 1996 Ford F-350 XL 1996 Ford F-350 XLT 1996 GMC K3500 Sierra SL 1996 GMC K3500 Sierra SLE 1996 GMC K3500 Sierra SLT 1997 Chevrolet Express 3500 Base 1997 Chevrolet Express 3500 LS 1997 Chevrolet P30 Base 1997 Ford E-350 Econoline Base 1997 Ford E-350 Econoline XL 1997 Ford F-350 Base 1997 Ford F-350 XL 1997 Ford F-350 XLT 1997 GMC K3500 Sierra SL 1997 GMC K3500 Sierra SLE 1997 GMC K3500 Sierra SLT 1997 GMC P3500 Base 1998 Chevrolet Express 3500 Base 1998 Chevrolet Express 3500 LS 1998 Chevrolet P30 Base 1998 Ford E-350 Econoline Base 1998 Ford E-350 Econoline XL 1998 GMC K3500 Sierra SL 1998 GMC K3500 Sierra SLE 1998 GMC K3500 Sierra SLT 1998 GMC P3500 Base 1999 Chevrolet Express 3500 Base 1999 Chevrolet Express 3500 LS 1999 Chevrolet P30 Base 1999 Dodge Ram 2500 Van Base 1999 Ford F-350 Super Duty Lariat 1999 Ford F-350 Super Duty XL 1999 Ford F-350 Super Duty XLT 1999 GMC K3500 Sierra SL 1999 GMC K3500 Sierra SLE 1999 GMC K3500 Sierra SLT 1999 GMC P3500 Base 2000 Chevrolet Express 3500 Base 2000 Chevrolet Express 3500 LS 2000 Dodge Ram 2500 Van Base 2000 GMC K3500 Sierra SL 2000 GMC K3500 Sierra SLE 2000 GMC K3500 Sierra SLT 2001 Chevrolet Express 3500 Base 2001 Chevrolet Express 3500 LS 2001 Dodge Ram 2500 Van Base 2002 Chevrolet Express 3500 Base 2002 Chevrolet Express 3500 LS 2002 Dodge Ram 2500 Van Base 2003 Chevrolet Express 3500 Base 2003 Chevrolet Express 3500 LS 2003 Dodge Ram 2500 Van Base 2004 Chevrolet Express 3500 Base 2004 Chevrolet Express 3500 LS 2005 Chevrolet Express 3500 Base 2005 Chevrolet Express 3500 LS 2006 Chevrolet Express 3500 Base 2006 Chevrolet Express 3500 LS 2006 Chevrolet Express 3500 LT 2007 Chevrolet Express 3500 Base 2007 Chevrolet Express 3500 LS 2007 Chevrolet Express 3500 LT