I This photo is looking from the top, down onto the rod with the last of the threads pointing out towards the front of the car. She’s a 66 with a 4 speed toploader and a old school mechanical clutch. My question is the fact that the nut is all the way towards the end of the rod mean that this clutch has been adjusted as far as it can and no longer adjustable? While at a stop sign unless I really push the pedal to floor with some force I can feel a very light rubbing like the clutch is out of adjustment and she’s not fully pulling the tranny out of gear
You might want to check how much slop is in the system. The equalizer and rods are known to wear. Also the clutch pedal support bracket above the steering column is known to have bushings wear out. All this can lead to not enough stroke and a hard to actuate clutch. Or it could be the clutch is wearing out. But I’d go through the linkage first.
This is a picture of the clutch rod on my 65. Looks to be the same as yours ? The upper clutch rod for the 66 is a different, no adjustment, set up. As suggested you may want to inspect and verify your assembly. Brian
Check all your pivot points and connections. Make sure the clutch / brake pedal support bracket isn't worn out or trashed from lots of usage. The z-bar shouldn't be shifting around while the clutch is being used. Like mentioned, check everything with the linkage and have a helper available or a video camera mounted in a way that can record what's going on while you're inside the car pushing the clutch pedal. If everything looks okay, another area to check is the clutch fork going into the bellhousing...I had the fulcrum crack on mine, and had to press the clutch almost to the floor before I could shift gears. Then it broke after awhile.