Harley updated the axle profile and material in 2020, requiring higher torque for a tighter tolerance.
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 harley-softail-rear-axle-torque-specs
: 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 Harley updated the axle profile and material in
: A 1/2-inch drive torque wrench is recommended to reach the high-torque requirements of 100+ ft-lbs. Harley-Davidson Softail Rear Axle Torque Report : On
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 .