The shop manual calls for adjusting the worm bearing first (1 - 1 1/2 pounds at the with the sector gear lash adjustment backed off, then the sector gear lash adjustment (2 to 2 1/2 pounds during the pull over center). How to is from the '57 GMC Maintenance manual is the same as your earlier Chevy truck. By the way, the 2 - 2.5 pound pull on the outer rim of the steering wheel converts to 1.5 to 1.75 foot pounds if you are using a torque wrench on the nut instaed of a fish scale on the rim.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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