Chevrolet 30 Series 1967 Service Manual page 459

NOTE: This is a special bolt and will require
a pt. socket or box wrench.
1 2
2. Tap with a soft mallet to remove coupling from
wormshaft. The coupling is splined to the steering
wormshaft.
3. Remove the two retaining nuts, bolts, reinforce­
ments, and lock washers. Separate the lower "sp lit-
clamp" and, remove the wafer type coupling and
two locking pins.
Installation
1. If disassembled, first set the flexible coupling in
place, then match up the large locking pin with the
large slot in the flange. Be sure pins are centered
in flange slots. Install and tighten the attaching
bolts, nuts, washers and retainers. Torque to 20
ft. lb.
2. Align the "sp lit-clam p '' to the steering gear worm
shaft and install the coupling.
3. Install the special bolt into the clamp and tighten.
Universal Joint Type (Fig. 10)
NOTE: Some models use an intermediate shaft
with a splined slip joint. On these models,
lowering the steering gear or steering column
is not necessary. Separate the upper coupling
as described below, remove intermediate shaft
and coupling and disassemble lower coupling on
bench.
Removal
1. After making steering shaft to worm shaft relation­
ship remove bolt, nut and washer from clamp on
Fig. 10— Universal Jo in t Type Steering Couplings and
Interm ediate Steering Shaft S lip Jo in t
steering gear wormshaft.
2. On tilt cab models, remove plate-to-floor panel
screws.
3. From the upper yoke of the universal joint, remove
the two snap rings, then remove the two yoke bush­
ings and cork washers, by tapping yoke shaft with
plastic mallet.
4. Move the center cross as necessary, to separate the
upper and lower portions of the coupling.
5. Remove the coupling from the vehicle.
. Disassemble lower portion of coupling on bench, by
6
repeating Steps 3 and 4.
Installation
1. Position center cross in lower yoke of coupling.
2. Position bushing and new cork washer on center
cross. Install retaining snap ring.
3. Place a second bushing and new cork washer on
center cross and retain with snap ring.
4. With cross installed in lower yoke, install coupling
in vehicle by assembling lower yoke to upper yoke as
outlined in Steps 2 and 3.
5. Assemble coupling to steering gear wormshaft align­
ing mark on wormshaft with mark on steering shaft.
. Install clamp bolt nut and washer and tighten.
6
7. On tilt cab models secure floor pan seal plate to
floor pan.
Intermediate Steering Shaft Models with Splined
Slip Joint (Fig. 10)
Removal and Installation
Remove and install
Coupling—Universal Joint Type".
Disassembly
1. With shaft on bench straighten tangs on dust cap and
slide yoke shaft out of yoke tube.
2. Remove felt washer dust cap and plastic washer.
Discard felt washer.
3. On Tilt Cab models, remove toe panel seal and seal
plate from shaft.
Assembly
1. On tilt cab models, install toe panel seal and seal
plate on yoke shaft.
2. Position dust cap, plastic washer, and new felt
washer on yoke shaft.
3. Aligning the arrow on the yoke shaft with the arrow
on the yoke tube, insert yoke shaft into yoke tube.
4. Push plastic washer, felt washer and dust cap into
position, on end of yoke tube, and bend tangs of dust
cap down against yoke tube.
STEERING GEAR-EXCEPT CHEVY VAN AND
P20-30
Removal
1. Set wheels in straight ahead position. Mark steer­
ing shaft to worm shaft relationship and loosen bolt
attaching lower end of shaft coupling to steering gear.
2. Disconnect pitman arm from steering gear. Use
Tool J-6632 on light-duty models and Tool J-3186 on
medium and heavy-duty models.
STEERING 9-5
as outlined under "Steering
CHEVROLET TRUCK SERVICE M ANUAL