ST_330_72_1972_Chevrolet_Truck_Chassis_Service_Manual_10_to_30

CLUTCHES AND TRANSMISSIONS 7-16

6. With ca rb u re to r le v e r fixed in the W.O.T. position, 2. Disengage p lastic snap lock on detent cable by in­
grasp cable casing and pull rearw ard until W.O.T. se rtin g a screw d riv er on each side of snap lock and
stop in transm ission is felt. pry up to release lock and com pressing locking tabs.

NOTE: Do not m istake detent which m ust be 3. Place c arb u reto r lev er in wide open th ro ttle (W.O.T.)
traveled through in order to reach W.O.T. for position (make sure carburetor lever is against
W.O.T. stop. W.OoT. stop).

7. Holding lever and cable in above position, push snap NOTE: (DETENT cable m ust be through detent)
lock on cable downward until top is flush with cable.
4. With carb u reto r lev er in W.O.T. position push snap
NOTE: Do not lubricate cable- lock on detent cable back into housing until top is
flush with cable retainer housing.
8. Install a ir cleaner.
5. Check linkage for p roper operation.
V-8 Engines
NOTE : Do not lubricate cable.
1. Remove a ir c le a n e r.
6. Install a ir cleaner.

COMPONENT PART REPLACEMENT

TRANSMISSION REPLACEMENT- suitable converter holding tool after removal
(All Except K Models) from the engine.

Removal Installation

1. R aise truck on hoist and rem ove oil pan drain plug to 1. Mount tran sm issio n on tran sm issio n lifting equip­
drain oil. ment installed on jack or other lifting device.

NOTE: If d esired, the oil may be drained after 2. Remove converter holding tool.
transm ission removal.
CAUTIO N: Do_ not p erm it co nverter to move
2. Disconnect the vacuum m odulator line and the speed­ forw ard after rem oval of holding tool.
om eter drive cable fitting at the transm ission. Tie
lines out of the way. 3. Raise tran sm issio n into place at r e a r of engine and
install transm ission case to engine upper mounting
3. Disconnect manual control lever rod and detent cable bolts, then install rem ainder of the mounting bolts.
from transm ission. Torque bolts to 25-30 ft. lbs.

4. Disconnect prop shaft from tran sm issio n . 4. Remove support from beneath engine, then ra ise
5. Install suitable tra n sm issio n lift equipment to jack or re a r of tran sm issio n to final position.

other lifting device and attach on transm ission. 5. If scribed during rem oval, align scrib e m arks on
6. Disconnect engine r e a r mount on tran sm issio n exten­ flywheel and converter cover. Install converter to
flywheel attaching bolts. Torque bolts to 30-35 ft.
sion, then remove the transm ission support cro ss­ lbs.
m em ber.
7. Remove con v erter underpan, s c r i b e flywheel- 6. Install flywheel cover.
converter relationship for assem bly, then remove the 7. R einstall tran sm issio n support cro ssm em ber to
flyw heel-to-converter attaching bolts.
8. Support engine at the oil pan ra il with a jack or transm ission and fram e.
other suitable b race capable of supporting the engine 8. Remove tran sm issio n lift equipment.
weight when the transm ission is removed. 9. Connect propeller shaft to transm ission.
9. Lower the re a r of the tran sm issio n slightly so that 10. Connect manual control lev er rod and detent cable
the upper transm ission housing-to-engine attaching
bolts can be reached using a universal socket and a to transm ission.
long extension. Remove upper bolts. 11. Connect vacuum m odulator line, and speedom eter

CAUTION: It^ is best to have an assistan t ob­ drive cable to transm ission.
serve clearance of upper engine components 12. Refill tran sm issio n through fille r tube, and following
while the transm ission re a r e n d is being
lowered. the recommended procedure provided ea rlie r in this
section.
10. Remove rem ain d er o f tran sm issio n housing-to- 13. Check tran sm issio n fo r p roper operation and for
engine attaching bolts. leakage. Check and, if necessary, adjust linkage.
14. Remove truck from hoist.
11. Remove the tran sm issio n by moving it slightly to the
re a r and downward, then remove from beneath the Rem oval K-Models (See Fig. 3)
vehicle and tran sfer to a work bench.
1. R aise vehicle on hoist and rem ove oil pan drain plug
NOTE: Observe converter when moving the to drain oil.
tra n sm issio n re a rw a rd . If it does not move
with tran sm issio n , p ry it free of flywheel before NOTE: If desired, the oil may be drained after
proceeding. transm ission removal.

CAUTIO N : Keep front of tran sm issio n upward 2. Remove tra n sfe r case shift lever and rod.
to prevent the converter from falling out. Install 3. Disconnect the vacuum m odulator line and the speed­

om eter drive cable at the transm ission. Tie lines out
of the way.

10-30 CHEVROLET TRUCK SERVICE MANUAL