Drivetrain - High Pitched Noise From Propeller Shaft

90toyota08 DRIVELINE/
REFERENCE DIFFERENTIAL
NUMBER 005
DATE 11-30-90
MODEL RN01, RN02, RN37,
VN94, VN01, VN02, VN39
TITLE: PROPELLER SHAFT HIGH PITCH NOISE


Some vehicles may exhibit a whistle type noise while driving in any of the forward gears at speeds below 50 mph. The propeller shaft has been identified as the probable source of the whistle noise.

To diagnose and identify if the propeller shaft is the source of the whistle noise, (for testing) install two rubber exhaust (donuts) hangers (p/n 90301-34207) approximately 18 inches from each end of the shaft. If, after installing the rubber exhaust hangers, the speed range changes or level of the whistle noise is reduced the propeller shaft is the source of the whistle noise (see illustration below).






Correction: Replace the propeller shaft with the new paper lined propeller shaft (see illustration below). The application chart and part number information is on page 2.
VEHICLE INFORMATION:

STARTING VIN: P/D
JT4RN01* # L7020503 10/89
L4018482 L0008663
JT4RN02P # L0000254 10/89
L4001634 L8002241
JT4RN37W # L7000600 10/89
L0000154
JT5VN94T # L0012792 10/89
JT4VN01 * # L0001305 10/89
L6006344
JT4VN02D # L0000187 10/89
JT4VN39 * # L0023084 10/89