Why didn't GM just use welded nuts there or a threaded boss?
With either of those methods, you couldn’t use a secondary locking device (castle nut w/cotter pin).
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
