Upgrade to the Ford Racing LOK Rebuild Kit with Carbon Discs for your 31 spline axle. This traction LOK rebuild kit will upgrade all of the stock diff components with better quality, carbon fiber components. ****** Upgrade or Replace. Whether you're rebuilding your 8.8" Traction-LOK rear or installing new gears, this kit from Ford Racing is what you need to do the job right. Make your differential perform even better than it did from the factory with this kit. Used d In Cobras & Shelbys. Don't choose inferior parts for your rebuild - this kit features the same carbon fiber clutch pack used in the Cobra and Shelby SVT Mustangs. These plates are more durable and are designed to handle more torque than the stock ones - lasting longer and transferring power better for both stock and modified 'Stangs. Complete Kit For 31-Spline. This complete kit includes the clutch pack, shims, s-spring (31-spline), and an instruction sheet so you'll have everything you need. Technical Note: 28 spline Mustangs will require use of a 28 spline S-spring (not included). Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Item #50092 MPN# M-4700-C ---------------------------------------------------------------- Make sure to Follow AmericanMuscle for the latest Ford Mustang news, videos, pictures and content! SUBSCRIBE at ****** Facebook: ****** Twitter: ****** Google : ****** Instagram: ****** AmericanMuscle.com is your aftermarket Mustang authority! We carry a huge selection of aftermarket Ford Mustang performance parts and styling accessories. With free shipping within the United States and best price-matching and customer service in the industry, we have you covered for your latemodel 1979-2015 Ford Mustangs. Make sure to talk to one of our Mustang Experts if you have any questions or want help planning your Mustang project or Mustang build! ******