Here is a photo taken of a ‘37 Chevy 1/2 ton showing the spring connection. I do not know if it would be the same for a car.  My guess is that it would be the same?

@lee and @skidplate There is a clip that holds the ball in the socket of the fork. On the trucks, as is seen in the photo above, The outboard end of the fork is engaged directly into a sort of ring on the bottom of the pedal. I don't believe any of the cars used this arrangement. Some had a short length of chain from the pedal to the fork. Both probably used an external spring, as shown, to keep everything snugly against the toe board when the pedal is at rest.

Mike

Yes mine has the chain. I've been doing some research and am thinking my problem is with the fork ball spring. I haven't found anything detailed enough to be sure but I'm assuming the spring keeps the ball firmly into the fork ball perch. And unless I'm just missing it, I believe that my spring is indeed missing. Also, since these springs and/or balls are still readily available, it only stands to reason that they break or fly off pretty often. So I have one on order. Hopefully that will firm up my fork arm to where I don't have to use three different springs to hold it in place... and off the pressure plate.

Thanks so much for the picture as I know it wasn't easy to take. And if anyone has had any experience with a missing ball spring, I'd love to hear about it.

Ok so I got the ball spring in. That was a complete waste of time. I'm sure there's some logical way that this spring does something but I've never found it. Ended up adjusting the fork every way I could think of (without the spring) to stop the noise while going down the road. I finally settled on adjusting the fork ball in, far enough away from the clutch assembly to keep it from touching any of the clutch springs. Then I used one spring to hold the fork kinda firm against the clutch. There's a hole in the frame that looks like it's supposed to be there maybe for a spring to connect. That holds the fork-to-clutch donut thingy to lightly touch the clutch donut thingy all the time. I haven't proven this yet but the only time the clutch doesn't make noise is when the pedal is slightly pressed applying pressure against clutch. I have another spring connected at the other end of the circuit that holds the pedal up. As was discussed earlier, the chain that connects the two ends of the circuit hangs kinda free with a little slack. And because of this, I feel like I need to put something there to keep the chain from falling off. I can't really believe this is how it was all engineered but I'm finding no other options. I mean why would they use a chain in the first place to connect the two functions if it was supposed to be firm?

final note: the only reason I've fought the idea of everything riding close to each other all the time is when I initially looked at the form arm to clutch setup, it was way apart. I mean really sloppy. Only after I snugged everything up just short of touching did it vibrate going down the road. I haven't driven it since the last adjustment (basically touching all the time) but if it's quiet then I'm going to assume it's correct. 

In case you still need them, here are some pictures of the clutch pull back spring on a 1937 Chevy car.

The end near the clutch fork arm mounts to a pin with a hole in the shaft.  The pin looks like a clevis pin with a round head and it fits through a hole in the clutch fork arm.

The original mount for the other end of the spring is to a small bracket on the top of the rear part of the engine side pan.  The bracket is attached by a stove bolt through the engine side mount cross member and is often missing if the engine or side pans have been removed.

Hope this helps.   Tom

Hey thanks Tom. Mine doesn't have the Clevis Pin. My spring just goes through the hole and wraps around. Maybe the pin would hold the fork a little straighter. I'll get that replaced. I've kinda sorta got the fork to lay correctly and not clatter down the road. The clutch still makes a little noise on occasion rubbing against the throw out pad (not bearing) but it's mostly ok. That pin may really have an impact as the spring (as it is now) is tending to twist the fork a little off center. Again thanks. Seems that whole config was somewhat ill thought out.

@skidplate I have also seen when the alignment for the front of the spring is off (like when it mounted to the bracket for the side motor mount as in the attached picture) it seems to encourage a vibration in the spring and a chattering sound.  Tom