reach the outer surface of the nut, they enter the return guides which direct them across and down into the ball nut where they enter the circuit again.
When a right turn is made, the ball nut moves upward and the balls circulate in the reverse direction.
The teeth of the ball nut engage teeth on the sector which is forged integral with the pitman shaft. The teeth on the ball nut are made so that a "high
point" or tighter fit exists between the ball nut and pitman shaft sector teeth when the front wheels are in the straight-ahead position. The teeth on the
sector are tapered slightly so that a proper lash may be obtained by moving the pitman shaft endwise by means of a lash adjuster screw which extends
through the gear housing side cover.
The head of the last adjuster and the selectively fitted shim fit snugly into a T-slot in the end of the pitman shaft so that the screw also controls end
play of the shaft. The screw is locked by an external lock nut.