Interm Ediate Steering Shafts With Pot Joint; Coupling - Chevrolet 1977 light duty truck Service Manual

N OTE: This is a special bolt and will require a 12
pt. socket or box wrench.
3. Remove the steering g ear to fra m e bolts and
lower the steering g ear f a r enough to remove the flexible

coupling.

N O T E : It is not necessary to disconnect the pitm an
arm from the pitm an shaft.
4. T a p lightly on the flexible coupling with a soft
mallet to remove the coupling from the steering gear
wormshaft.
Installation
CAUTION: See C A U T IO N on page I o f this
section regarding the fa steners referred to in
steps 2, 4 a nd 5.
1. Install the flexible coupling onto the steering
gear w orm shaft, aligning the flat on the shaft with the
flat in the coupling.
N O T E : Push the coupling onto the w orm shaft until
the coupling reinforcem ent bottoms against the
end o f the worm.
2. Install the special bolt into the split clamp and
torque to specifications.
N O T E: The bolt must pass through the shaft
undercut.
3. Place the steering gear into position, guiding the
flexible coupling bolts into the p rop er holes in the
steering shaft flange.
4. Install and tighten the steering gear to fram e
bolts.
5. Install the coupling to flange bolt nuts and
washers and torque to specifications. Be sure to maintain
a coupling to flange dim ension o f .250" to .375". The
coupling alignm ent pins should be centered in the flange
slots.
In term ed iate S teering Shafts With Pot Joint
Couplings
Removal (Fig. 3B-46)
1. Remove the lower
coupling bolts.
2. Remove upper shaft to interm ediate coupling
bolt
BEARING
LOWER BLOCKS
SHAFT t SNAP
S B
SEAL RING
CLAMP
TENSION
SPRING
shaft flange to flexible
COVER
UPPER
SHAFT
CLAMP
NUT
Fig. 3B 4 7 -C hecking Coupling Pin Centering
3. If necessary, remove the steering gear to fram e
bolts and lower the steering gear far enough to remove
the interm ediate shaft assembly.
NOTE: It is not necessary to remove the pitman
arm from the pitm an shaft.
Disassembly
1. Mark cover to shaft relationship. Pry off" snap
ring and slide cover from shaft.
2. Remove bearing blocks and tension spring from
pivot pin.
3. Clean grease off pin and end o f shaft. Scribe
location mark on pin on same side as cham fer in shaft.
4. Supporting shaft assembly securely, with c h a m ­
fer up, press pin out o f shaft with arb or press.
Do not drive pin out with hammer.
CAUTION:
This will cause sticky or binding bearings when
reassembled.
5. Remove seal clamp and slide seal off end of
shaft.
Assembly
1. Be sure all parts are free o f dirt. Slide seal onto
steering shaft. With lip o f seal against step in shaft
clamp seal.
2. Press pin back into shaft from cham fered side.
Locate pin in shaft using scribe m ark as reference.
CAUTION: Pin m ust be centered within .012
in. or binding in the coupling will result.
3. Check centering of pin (fig. 3B-47).