GM Service Manual Online
For 1990-2009 cars only

Refer to the chart in order to determine the correct low and reverse band servo pin length to use. A, B and C on the chart refer to markings on the J 21370-10 Band Apply Pin Gauge. Numbers 1-7 match the correct piston pin length to the J 21370-10 land indicated by the low and reverse band servo pin inspection procedure.


Object Number: 28391  Size: SH

Servo Piston Pin Selection

Pin Length

Pin Identification

mm

inch

83.82-83.97

3.300-3.306

1

84.53-84.68

3.328-3.334

2

85.24-85.39

3.356-3.362

3

85.95-86.10

3.384-3.390

4

86.66-87.53

3.412-3.446

5

87.38-87.53

3.440-3.446

6

88.09-88.24

3.468-3.474

7