If you don't have a factory shop manual for your car, you should get one.
Be sure to check all steering components for looseness.
The steering box has 2 adjustments that should be done in the proper order.
(Before adjusting anything, pull the horn cap and see if there is a small mark on the end of the steering shaft.
This mark should be at the top of the shaft with the wheel in the straight ahead position.)
If this mark is off center, then adjust the tierods until it is centered.
The first is the bearings on the steering wheel shaft.
They should be tightened up until you get 1/2 lb of pull with a small fish scale to turn the steering wheel (at the outer egde). Refer the manual on tis adjustment.
This adjustment is done with the wheel turned either clear right or left to get off the high point of the worm gear.
NOTE oberve any bearing roughness as you adjust them...This would need to be reomved (new bearings) before any adjusting can be done.
The to adjust the pitman shaft, turn the wheel from lock to lock. Divide the number of turns from lock to lock by 2. Return the wheel the 1/2 number and the wheel should be in the straight ahead position.
Then loosen the lock nut on the pitman shaft adjusting screw and turn the screw (to the right)a very slight amount and then rotate the steering wheel through the center.
As you go through the center position, see if you notice a small amopunt of drag at the center point.
If you don't, then turn the screw a little more and recheck the spot. When you feel a very slight amount of drag in the center position. Lock the lock nut, but hold the screw so it can't turn.
This should improve things. Don't let anyone tell you to just do the pitman screw adjustment....It is the LAST adjusment.
