On my ‘52, the bottom is riveted with a solid rivet that has a shoulder on it to give the clearance needed to operate smoothly. The top has a shoulder bolt with a captured nut on the back side. The first picture is the bottom and the second is the top.
If you have a lathe or know a buddy that does, they are easily made.
Last edited by Phak1; 11/16/202211:10 PM.
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