GMC Chevrolet Camaro 1998 Service Manual page 97

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General Information
If launch shudder or second-order driveline vibration is
still present, measure and correct the driveline angles.
Measuring Two-Piece Propeller Shaft
Working Angles
This procedure is essentially the same as for
one-piece propeller shafts. You must, however, take
into account the third angle.
1 . Place the inclinometer on the propeller shaft
bearing cap (1 ).
2. Center the bubble in the sight glass and record
the measurement. The bearing cap must be
straight up and down to obtain accurate
measurement. Enter the measurements on your
diagram.
3. Rotate the propeller shaft 90 degrees and place
the inclinometer on the transmission output yoke
bearing cap. Again, the bearing cap must be
straight up and down to obtain an accurate
measurement.
4. Center the bubble in the sight glass and record
the measurement.
5. Subtract the smaller reading from the larger
reading to obtain the front U-joint working angle.
Vibration Diagnosis and Correction 0-85
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