From what you have described in this and other posts, the parts in your steering gear box are worn out. You can only do so much with the adjustment as others have pointed out. Probably time to get the box rebuilt.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine