The caps actually had like a loop of metal on either end that the bolt went through, which left a little gap. When you tightened the bolt, the gap was reduced. I'm assuming that is some type of springy material that puts pressure on the screw head. I reused the lock washers anyway, so it has two locking methods.
Do you have some photos of what that caps screws locking loop of metal looks like?
Also, I was a little surprised that there is no torque value on those cap screws in the service manual. I just got them good and snug.
The truck shop manual does not specify a ft. lbs. of Torque on the caps screws it just says tighten cap screws securely.
The 1949-1953 Passenger Car Shop Manual specifies 25-30 ft.lbs. Torque. Click on "read under assembly".
The four Universal Joint Ball (Housing) collar bolts, 8-12 ft. lbs. Torque.
The four Universal Joint bolts or cap screws, 25-30 ft.lbs. Torque
read under assemblyThe one Universal Joint front yoke attaching bolt, 15-20 ft. lbs. Torque
Passenger Car and truck use the same u-joint and ball housing parts.
