There's a grease fitting on the pedal fulcrum shaft. It's hard to see and it often doesn't get greased so the bushing wears, rubbing the sides of the floorboard hole. I bought bushings and had them fitted for grease clearance. The problem went away never to return. I grease that fitting every lube job.

1951 3800 1-ton
"Earning its keep from the get-go"
In the DITY Gallery
1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.