Chevrolet 70 1969 Series, Shop Manual

Page: 832 / 913

TRANSM ISSIO N AND CLUTCH 7-86
8. Use soft ham m er, or soft drift if necessary, to tap
m ain drive gear (1) and bearing (61) through front bearing
bore of case.
9. Remove the fourteen pilot bearing rollers from the
cavity in the m ain drive gear. If any of these rollers has
fallen into the transm ission case, remove them before pro­
ceeding to the next step.
10. Rem ove speedom eter drive gear (32) from m ainshaft
(28).
11. R em ove snap ring from m ainshaft rear bearing (29).
12. Using bearing puller set (J-4414), remove m ainshaft
rear bearing.
13. R em ove m ainshaft and gear assembly by lifting up
front of m ainshaft and sliding assem bly up and forward
out of rear bearing bore.
REMOVAL OF REVERSE
IDLER GEAR
21
1 Nut
2 Lock Washer
3 Control Housing
4 Shift Finger
5 Shift Finger Key
6 Selection Cam and
Stud Assembly
7 Snap Ring
8 Thrust Washer
9 Gasket
10 Nut
11 Selection Lever
12 Washer
13 Bolt
14 Thrust Washer
15 Shift Finger Shaft
16 Shift Lever
17 Bolt
18 Washer
19 End Cover
20 Selection Lever Shaft
21 Shift Finger Screw
22 Reverse Shift Finger
Stud
23 Reverse Shift Finger
1. Using rem over tool (J-6648) as shown in figure 3, re­
move reverse idler gear shaft.
2. Lift reverse idler gear (46, fig. 1), bearings (45) and
thrust washers (44 and 47) out of transm ission case.
REMOVAL OF COUNTERSHAFT
(Key N um bers Refer to Figure 1)
Figure 5 — Remote Control A ssem bly
1. Rem ove snap ring from countershaft rear bearing
(37).
2. Using bearing puller set (J-4414), remove countershaft
rear bearing.
3. M ove countershaft assembly tow ard the rear and lift
the assembly out of transm ission case.
4. Press or drive countershaft front bearing (60) and re­
tainer from bore of the transm ission case.
1 1st and Reverse Shift Rod
Bracket
2 1st and Reverse Shift Rod
3 Poppet Balls
4 Poppet Springs
5 1st and Reverse Shift Fork
6 Breather
7 Shifter Housing
8 Expansion Plug
9 Set Screw
10 2nd and 3rd Shift Fork
11 4th and 5th Shift Rod
12 4th and 5th Shift Fork
13 Interlock Ball
14 Interlock Pin
15 2nd and 3rd Shift Rod
16 Expansion Plug
17-Set Screw
T-4116
F ig u re 6 — S h ifte r H o u s in g
CHEVROLET SERIES 70-80 HEAVY DUTY TRUCK S H O P M A N U A L