17-13. TRANSMISSION ASSEMBLY FROM SUBASSEMBLIES (3L80) (Cont' )
m. Rear Servo
Before installing rear servo, check for correct band apply pin, using
band apply pin selector gauge. This is equivalent to adjusting band.
Attach band apply pin selector gauge to case (3) using two rear servo cover capscrews (1). Do not
tighten capscrews (1) at this time.
Install gauge pin into band apply pin selector gauge and into case (3). Check for freeness of gauge
pin and tighten capscrews (1) to 15 lb-ft (20 N ).
Apply 25 lb-ft (34 N ) torque to lever on band apply pin selector gauge. Selection of proper rear
band apply pin is determined by relation of flats on gauge pin to machined area (2) around hole on
band apply pin selector gauge base.
Determine correct apply pin to be used from table below.
Apply pins are identified by the number of rings around small end of
If necessary to change apply pin, refer to rear servo repair para. 17-11.
a. If both flats are below gauge surface, install long servo pin identified by 3 rings.
b. If 1 flat is above gauge surface, install medium servo pin identified by 2 rings.
c. If both flats are above gauge surface, install short servo pin identified by 1 ring.
5. Remove band apply pin selector gauge from case (3).