Example: A 2012 Heritage Softail (FLSTC) specifically lists in some guides, highlighting the importance of year-specific verification. 2000–2007 (Early Twin Cam Softail) : 60–65 ft-lbs . 2. Required Tools & Preparation
: 95–105 ft-lbs . 2008–2017 (Twin Cam Softail) : 95–105 ft-lbs .
: A 1/2-inch drive torque wrench is recommended to reach the high-torque requirements of 100+ ft-lbs. harley-softail-rear-axle-torque-specs
Harley updated the axle profile and material in 2020, requiring higher torque for a tighter tolerance.
The following specifications are based on common service manual data for various Softail generations. 1. Torque Specifications by Model Year 2020–Present (Milwaukee-Eight Softail) : 135–145 ft-lbs . Example: A 2012 Heritage Softail (FLSTC) specifically lists
: A 36mm socket is standard for most modern Harley-Davidson rear axle nuts.
: On Softail models with low-hanging mufflers, you may need to remove or loosen the exhaust to gain straight access to the axle nut. 3. Critical Installation Steps Check Rear Axle Nut Torque Required Tools & Preparation : 95–105 ft-lbs
For most Harley-Davidson Softail models, the rear axle torque specification generally falls between . However, newer Softail models (2020 and later) often utilize an updated specification of 135–145 ft-lbs (183–197 Nm) due to changes in axle material and design. Harley-Davidson Softail Rear Axle Torque Report