Can’t vouch for the coupler nut, but the small brass knurled nuts work great. I don’t see why the coupler nuts would be much different. I bought mine in Lowes, two for $1.48.
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
