STANDARD
PROCEDURE PROPELLER SHAFT ANGLE (You can use a socket and angle gauge
in place of the Inclinometer)
(1) Place transmission in neutral.
(2) Raise and support the vehicle at the axles as level as possible.
(3) Remove any external bearing snap rings from universal joint so protractor
base sits flat.
(4) Rotate the shaft until transmission/transfer case output yoke bearing
is facing downward.
NOTE: Always make measurements from front to rear and from the same side
of the vehicle.
(5) Place Inclinometer 7663 (J-23498A) on yoke bearing (A) parallel to
the shaft (Fig. 4). Center bubble in sight glass and record measurement.
NOTE: This measurement will give you the Output Yoke Angle (A).
(6)
Rotate propeller shaft 90 degrees and place Inclinometer on yoke bearing
parallel to the shaft (Fig. 5). Center bubble in sight glass and record
measurement. This measurement can also be taken at the rear end of the shaft.
NOTE: This measurement will give you the Propeller Shaft Angle (C).
(7) Subtract smaller figure from larger (C minus A) to obtain Transmission
Output Operating Angle.
(8) Rotate propeller shaft 90 degrees and place Inclinometer on pinion yoke
bearing parallel to the shaft (Fig. 6). Center bubble in sight glass and
record measurement.
NOTE: This measurement will give you the pinion shaft or Input Yoke Angle (B).
(9) Subtract smaller figure from larger (C minus B) to obtain axle Input
Operating Angle. Refer to rules given below and the example in (Fig. 7) for
additional information.
1.
Good
cancellation of U-joint operating angles (within 1°).
2.
Operating
angles less than 3°.
3.
At
least 1/2 of one degree continuous operating (propeller shaft) angle.
