Just Mark, on the steering gear on the side or top of the gear opposite the pitman arm you should see a slotted screw and a lock nut, that is the slack adjuster for the sector shaft. I think there is a tech tip or some info on adjustment here but you should be able to get something from the net.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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