Chevrolet 30 Series 1967 Service Manual page 408

CLUTCHES AND TRANSMISSIONS 7-22
Fig. 4 J - O rder o f Shifter Shaft Assembly
Installation
1. Remove cardboard covering from transmission case.
2. Make sure all transmission gears are in neutral and
install cover assembly with new gasket to transmis­
sion case, making sure shifting yokes slide over
their proper gears and that reverse shifter lever
properly engages reverse shifter head.
3. Install transmission cover attaching bolts and tighten
to 20-25 ft. lbs.
4. Using Tool J-8109, replace gearshift lever and check
operation by shifting into all gears.
5. On conventional models, replace transmission cover
to body floor, install floor mat and replace accelera­
tor pedal. On Forward Control models replace front
floor pan.
REAR BEARING RETAINER OIL SEAL
AND/OR SPEEDOMETER GEARS
Removal and Installation
1. Disconnect propeller shaft as outlined in Section 5
and, on all except
1 / 2
peller shaft brake as outlined in Section
2. Remove speedometer
retainer.
3. Remove universal joint flange retaining bolt, lock-
ton models, disconnect pro­
.
6
driven gear from bearing
washer and special washer and remove flange and
speedometer drive gear from mainshaft.
4. To replace rear bearing retainer oil seal:
a. Remove old seal from retainer.
b. Coat outer diameter of new seal with Permatex
and install in retainer (fig. 5J), until seal is flush
with outside of retainer.
5. To replace speedometer gear, press speedometer
drive gear off hub of universal joint flange and press
new gear into position using Tool J-4869.
NOTE: The drive gear must be pressed onto
the front yoke with the chamfer or step on the
O.D. of the gear away from the universal joint.
. Install universal joint flange and speedometer gear
6
assembly and install universal joint flange special
washer, lockwasher and retainer bolt.
to 68-73 ft. lbs.
7. Replace speedometer driven gear.
. Install propeller shaft as outlined in Section 4 and,
8
on all except ton models, install and adjust pro­
1 / 2
peller shaft brake.
9. If the transmission was drained, refill with 5 pts. of
S.A.E. 90 gear lubricant.
REVERSE IDLER GEAR ADJUSTMENT
Correct adjustment of the reverse idler lever eccentric
bolt (fig. J) is necessary to provide correct engagement
6
of the reverse gear train to eliminate reverse gear dis­
engagement. The reverse idler must not interfere with
the first and reverse gear when the first and reverse
gear is shifted forward, synchronized and engaged with
the second speed gear. Likewise, the reverse idler must
be positioned so that when shifted into reverse, maximum
engagement is provided between idler gear and first and
reverse sliding gear without the reverse idler gear con­
tacting the transmission case at the rear.
To adjust the position of the reverse idler gear, the
— _
Tighten bolt
CHEVROLET TRUCK SERVICE M ANUAL