Sliding Yoke — Tata Ace Super — Description
About the Part
The APDTY Transmission Slip Yoke  (commonly referred to as a sliding yoke or slip yoke) is a propeller shaft drivetrain component used in vehicles like the Tata Ace Super.
What It Is
A sliding yoke is a splined, movable end of the propeller shaft assembly that engages with the output shaft of the transmission or transfer case and allows the propeller shaft to change length as the vehicle operates. It slides in and out on the splines to compensate for changes in the distance between the transmission output and rear axle due to suspension movement or load shifts.
Primary Functions
Accommodates driveline length change: As the suspension moves up/down, the driveshaft must extend or retract slightly to avoid binding. The sliding yoke lets the shaft slide telescopically to absorb this movement.
Transfers torque: Through its splined interface, it transmits rotational torque from the transmission output into the propeller shaft.
Smoothens operation: Helps maintain alignment and reduce stress on universal joints and other drivetrain parts during acceleration, braking, and road surface changes.
Fitment
Found where the propeller shaft connects to the transmission output.
Commonly used in rear-drive light commercial vehicles, including Tata Ace Super and similar small trucks.
How It Works (Simple)
The sliding yoke has internal splines that match the external splines on the transmission output shaft.
As the vehicle travels and the suspension moves, the spline connection allows the yoke to slide while still rotating with the shaft.
This sliding action prevents drivetrain binding and reduces wear on related parts.