GMC 1982 Light Duty Truck Service Manual page 237

CONDITION
Hard Steering - Excessive Effort
Required at Steering Wheel.
Poor Returnability.
POSSIBLE CAUSE
Low or uneven tire pressure.
Steering linkage or bolt joints
need lubrication.
Tight or frozen intermediate rod,
tie rod or idler socket.
Steering gear to column
misalignment.
Steering gear adjusted too
tightly.
Front wheel alignment
incorrect, (manual gear)
Steering linkage or ball joints
need lubrication.
Steering gear adjusted too
tightly.
Steering gear to column
misalignment.
Front wheel alignment
incorrect. (Caster)
Fig. 3BT3--Steering Linkage Diagnosis Chart B
STEERING LINKAGE
CORRECTION
Inflate to specified pressures.
Lube with specified lubricant.
Lube replace or reposition
as necessary.
Align column.
Adjust over-center and thrust
bearing preload to
specification.
Check alignment and correct
as necessary.
Lube with specified
lubricant.
Adjust over-center and thrust
bearing preload to
specifications.
Align column.
Check alignment and correct
as necessary.
3B1-3