U-Joint Binding During Acceleration on Loop 1604 On-Ramps
U-joint binding during low-speed on-ramp acceleration traces to radial play above 0.006 inches at the needle bearing race, driveline operating angles pushed past the 5-degree smooth-operation threshold by on-ramp curve geometry, and June heat reducing grease film strength at peak torque demand. The shudder onset between 0 and 25 mph and its disappearance at highway […]
