Chevrolet Chevelle 1977 Repair Manual page 331

Fig. 7 A - 3 5 C - R e m o v in g Fro nt Band
9. Remove sun gear shaft (Fig. 7A-36C).
Check Rear End Play as Follows (Fig. 7A-37C)
a. Install J-9539 or a 3/8"-16 threaded bolt into an
extension housing attaching bolt hole (Fig. 7A-37C).
b. M ount a dial indicator on bolt and index with end of
output shaft.
c. Move output shaft in and out to read end play. End
play should be from .007"-.019". Selective washer controlling
this end play is a steel washer having 3 lugs that is located
between output shaft thrust washer and rear face of
transmission case.
If a different washer thickness is required to bring end
play within specification, it can be selected from the chart
Fig. 7A-36C--Removing Sun Gear Shaft
AUTOMATIC TRANSMISSIONS
Thickness
.074 - .078
.082 - .086
.090 - .094
.0 9 8 -.1 0 2
.1 0 6 -.1 1 0
.114 - .118
D I AL I N D I C A T O R
Fig. 7 A-3 7 C --C h e c k in g Rear U n it End Play
REAR END WASHER THICKNESS
Ide n tifica tio n
Notches and/or Numeral
None ............................... 1
1 Tab S id e ....................... 2
2 Tab S id e ....................... 3
1 Tab O .D .......................... 4
2 Tabs O .D ........................ 5
3 Tabs O .D ........................ 6
Fig. 7 A - 3 8 C - R e a r End W a s h e r Thic k n e s s Chart
CENTER SU PPO R T BOLT
Fig. 7A-39C--Removing Center Support Bolt
(400)7A-11
J - 9 5 3 9