One Piece Propeller Shaft

Fig 1: Identifying Output Angle (A)

Courtesy of CHRYSLER GROUP, LLC

This procedure applies to front and rear propeller shafts.

1. Raise vehicle and support the axles as level as possible, allowing the wheels and propeller shaft to turn.
2. Remove universal joint snap rings if equipped, so inclinometer base sits flat.
3. Rotate shaft until transmission/transfer case output yoke bearing is facing downward.
   NOTE:

   Always take measurements from front to rear and on the same side of the vehicle.

4. Place Inclinometer (special tool #7663, Inclinometer) on yoke bearing cap or pinion flange ring parallel to the shaft. Center bubble in sight glass and record measurement (A).

   This measurement will give you the transmission yoke Output Angle (A). 

   Fig 2: Propeller Shaft Angle (C)

   Courtesy of CHRYSLER GROUP, LLC
5. Rotate propeller shaft 90 degrees and place Inclinometer on yoke bearing parallel to the shaft. Center bubble in sight glass and record measurement. This measurement can also be taken at the rear end of the shaft.

   This measurement will give you the Propeller Shaft Angle (C). 

   Fig 3: Companion Flange Input Angle (B)

   Courtesy of CHRYSLER GROUP, LLC
6. Rotate propeller shaft 90 degrees and place inclinometer on companion flange yoke bearing parallel to the shaft. Center bubble in sight glass and record measurement.

   This measurement will give you the pinion Companion Flange Input Angle (B). 

7. Subtract smaller figure from larger (C minus A) to obtain Transmission/Transfer Case Output Operating Angle  .
8. Subtract smaller figure from larger (C minus B) to obtain axle Input Operating Angle  .

Fig 4: Universal Joint Angle Example

Courtesy of CHRYSLER GROUP, LLC

Refer to RULES below and example shown in illustration for additional information.

RULES

• Good cancellation of U-joint operating angles should be within 1 degree.
• Operating angles should be less than 3 degrees.
• Operating angles less than 10 degrees for double Cardan U-joint.
• At least 1/2 of one degree continuous operating propeller shaft angle.