Motor Grader Drive Shaft – Length, Flange and Phasing Guide
A motor grader drive shaft carries torque between powertrain assemblies. Correct length alone is insufficient; flange pilots, bolt circles, universal joints, slip travel and yoke phasing all affect safe operation.
Ordering basis: Measure operating length, flange details, universal joints and slip-spline travel before ordering.
Drive-shaft dimensions to record
Measure installed and compressed length from defined faces.
Record flange diameter, pilot and bolt pattern.
Identify universal-joint size and retaining method.
Mark yoke phasing and slip-spline engagement.
Vibration is a diagnostic clue
Vibration may result from worn joints, bent tubing, lost balance weights, incorrect phasing, mount movement or excessive driveline angles. Inspect the complete driveline before replacement.
Installation and runout checks
Preserve phasing marks, clean flange faces and use the specified fasteners. Verify slip travel through articulation, rotate by hand where permitted and check vibration at controlled speed.
Product record
| Component | Propeller / drive shaft assembly |
| Part number | Not shown — verify from the original component or parts catalogue |
| Fitment rule | installed length, flange pilot, bolt pattern, spline travel, joint size and phasing |
Related product reference
Review the motor grader turbine shaft guide for another component-level identification workflow. The linked product is a reference only and does not establish interchangeability.
FAQ
Can a drive shaft be ordered by length only?
No. Flanges, pilots, joints, slip travel and phasing must also match.
Why are balance weights important?
Removing or altering them can create high-speed vibration and bearing damage.
Should universal joints be checked separately?
Yes. Stiffness, play or dry bearings can mimic an out-of-balance shaft.
Compatibility note: Confirm the complete driveline geometry and interfaces.
