Chevrolet 1977 10 Series, Repair Manual, Page: 391 / 468

MANUAL TRANSMISSION
7B-11
R E A R
i F,LL I
1 P LU G 1
D R A IN
B O L T
Fig. 7 B -3 B -D ra in T ra n s m is s io n
UPPER D E T E N T
S P R IN G (L O N G )
A L IG N M E N T
M A R K S
Fig. 7 B -6 B -R e m o v in g F ro n t B e a rin g R eta in e r
13. Remove set screw from First-Reverse shifter fork
and slide shift rail out rear of case.
14. Shift First-Reverse sleeve and gear all the way
forward and rotate First-Reverse shifter fork upward and out
of case. Remove First-Reverse Detent plug from case.
15. Shift Second-Third Shifter fork rearw ard to gain
access to setscrew, remove setscrew, rotate shift rail 90° with
pliers to clear bottom detent plug and remove interlock plug
with magnet (Fig. 7B-9B).
16. Using a long thin punch (1 /4 inch diam eter or less)
insert through access hole in rear case to drive out shift rail
and expansion plug located in shift rail bore at front of case.
Fig. 7 B -4 B ~ L o c a tio n o f U p p e r D e te n t S p rin g
N O T E : A L IG N R O L L
P IN H O L E W H E N
IN S T A L L IN G
C O U N T E R S H A F T
D U M M Y S H A F T
T O O L J -2523 2
Fig. 7B-5B--Removing Countershaft
Fig. 7B-7B--Removing Front Bearing