QU40103 Left Hand Thread Ratchet Type Rear Axle Spindle Nut

QU40103 Left Hand Thread Ratchet Type Rear Axle Spindle Nut for 1985-2010 Ford F-250 and F350 Trucks is an original equipment replacement, Hi-Shear, left hand ratcheting spindle nut for Ford 1985-1997 10.25", 1999-2021 10.5", and 1987-1990.5 Dana 70, 70HD rear full float drive axles.

Need More Info? Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!

Dan the Gear Man® Tech Notes:
Right Side Spindle Nut
Torque and Bearing Preload
Spindle Nut Socket
Applications

Tech Note 1: Right Side Spindle Nut
10.25" and 10.5" Ford Sterling plus 1988-1991 F-350 Super Duty Dana 80 rear axles typically have a spindle with left-hand threads on the left (U.S.A. Drivers Side) and a right-hand thread spindle on the right side (U.S.A. passenger side). See QU40102 for a right-hand thread Spindle Ratchet Nut. Dana 80 Rear Axles in 1996-2000 Ford E350, E450 vans and 1990.5-2018 F-350 trucks use QU40102 right-hand thread nuts for both sides.

Tech Note 2: Torque and Bearing Preload
The torque specification and bearing preload will vary by application. Consult a Ford factory service manual for the correct specifications for your truck.

Tech Note 3: Spindle Nut Socket
Remove and install these nuts with QT1019 Spindle Nut Socket.

Applications
Ford Rear Axles
10.25": 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
10.5": 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Dana 70, 70HD: 1987, 1988, 1989, 1990.5