Chevrolet 70 1969 Series, Руководство по ремонту

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TRANSMISSION AND CLUTCH 7-13
3. Drive idler shaft in, locating lock notch flush with
transmission case. Install lock plate (6) and lock
screw (5). Tighten lock screw firmly.
Model 541GL Transmission, Bearing Type
Key numbers in text refer to Figure 8.
1. Position reverse idler gear (8) on reverse idler shaft
(7) with shift fork groove toward front of transmis­
sion.
2. Position reverse idler gear shaft front thrust washer
(9) on front of idler gear shaft (7) with tangs of thrust
washer facing out.
3. Install reverse idler gear assembly in transmission
case (6), making sure that tangs of front thrust wash­
er (9) fit in grooves of boss (11) of case.
4. Position rear thrust bearing (4) over boss at rear of
reverse idler gear shaft (7).
5. Position rear thrust bearing washer (3) in seat in rev­
erse idler shaft retainer (1); then install a new O-ring
seal (2) in groove of retainer.
6. Install reverse idler shaft retainer (1) in transmission
case (6) over end of reverse idler gear shaft (7).
7. Position retainer lock plate (12) against transmission
case (6) and retainer (1). Install lock plate bolt (14)
and tighten firmly.
INSTALLATION OF COUNTERSHAFT
On Model 540GL Transmission
Accomplish the Following Procedures:
Key numbers in text refer to Figure 2.
1. With snap ring installed in groove of countershaft
front bearing (37), press or drive bearing assembly
into bore of transmission case.
2. With bearing thrust washer (38) positioned on pilot
end of countershaft lower countershaft assembly into
transmission case. Move the assembly forward into
front bearing (37).
NOTE: Bolts and front bearing retaining washer
(66 and 64, fig. 3) can be used to pull counter­
shaft into place in front bearing (37).
3. Using a new gasket, install countershaft rear bearing
retainer (25). Tighten retainer attaching bolts firmly.
4. Firmly tighten retainer washer bolts (66, fig. 3) in
countershaft and secure with new lock wire (fig. 17).
5. Install countershaft front bearing retainer (36) and
new gasket. Tighten attaching bolts firmly.
On Model 541GL Transmissions, Accomplish
The Following Procedures:
Key numbers in text refer to Figure 3.
1. With snap ring installed in groove of countershaft
front bearing (63), install front bearing and retaining
spacer (65) in bore of transmission case (77).
2. Position thrust washer (67) on front end of counter-
F ig u r e 1 7 — C o u n t e r s h a f t a n d M a i n D riv e G e a r B e a r in g s In sta lle d
shaft (71); then lower countershaft assembly into
transmission case (77). Move the assembly forward
into front bearing (63). Bolts (66) and retaining wash­
er (64) can be used to pull countershaft assembly into
place in front bearing (63).
3. Using grease to hold 24 bearing rollers (82) in place,
position spacer (83) and 24 needle bearing rollers (82)
in bore of countershaft rear bearing retainer (85).
4. Using a new gasket (81), install countershaft rear
bearing retainer assembly (85). Tighten attaching
bolts (84) securely.
5. Tighten retaining washer bolts (66) securely and se­
cure with new lock wire (fig. 17).
6. Install countershaft front bearing retainer (74) and
new gasket (75). Tighten attaching bolts (73) firmly.
INSTALLATION OF MAINSHAFT
AND MAIN DRIVE GEAR
Key numbers in text refer to Figure 3.
1. Remove front synchronizer outer stop ring (4) and
front inner ring and pin assembly (5) from front end
of mainshaft (31) to provide clearance when installing
the mainshaft assembly.
2. Lower mainshaft assembly into transmission case
(77); then reinstall outer stop ring (4) and inner ring
and pin assembly (5) on front end of mainshaft (31).
3. Install main drive gear and bearing assembly, guiding
front end of mainshaft into 14 pilot needle bearing
rollers (56) in cavity of drive gear (57). Figure 17
shows main drive gear and bearing installed.
4. Install drive gear bearing retainer (61) using two new
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L