GMC 1982 Light Duty Truck Service Manual page 339

MANUAL STEERIN G GEAR
Components
Thrust Bearing
Preload
A djuster Plug
85 lbs. ft.
Lock Nut
Over Center
Preload
Over Center
25 lbs. ft.
Lock N ut
Total Steering 18 lbs. in.
Gear Preload
* ln excess o f thrust bearing preload.
SPECIFICATIONS
STEERIN G GEAR RATIOS
Manual
Veh ic le
Gear
R a tio
G 10-20 24:1
G30 24:1
P20-30
—
—
M otor Home
24:1
C10
C20-30 24:1
K10-20
—
POWER STEERING PUMP PRESSU RES
V eh ic le
A ll C-G
C 10-30
5 to 8
G 10-20-30
lbs. in.
P10-30
4 to 10
M otor Home & K
lbs. in .*
Max.
Fig. 3B4--Specs
STEERING COLUMNS
Power
Overall Gear O verall
R a tio R a tio
R a tio
29.4:1 21.4:1
to 14:1 to
36.7:1 26.7:1
29.4:1 21.4:1
14:1
to to
26.5:1
36.4:1
21.2:1
17.5:1 to
—
25.7:1
16.0:1
-
14:1 to
21.9:1
29.1:1 16:1 16.9:1
to
to to
37.0:1 13:1 20.2:1
29.4:1 17.2:1
16:1
to to to
36.3:1
13:1 20.6:1
16:1 13.2:1
to
to
—
13:1 17.2:1
w /o H ydroboost
w ith Hydroboost
G30
3B4-51
Pressure
1200 - 1300 psi
900 - 1000 psi
1350 - 1450 psi
1 2 0 0 - 1300 psi
1 3 5 0 - 1450 psi