The clutch fork is held in place in the socket with that spring and is a pivot point every time the clutch is pushed in. All of those components are potential wear points and the spring can break. Put a small amount of grease on the contact points when you assemble them.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine