The original clutch linkage parts from my '68 small block are showing the wear of 50 years and many, many miles. Both ends of the upper pushrod and the linkage end of the lower adjustable pushrod are worn like you see in the picture below. The picture below is the worst of the three push rod ends. The holes in the clutch pedal and each of the Z bar arms that the push rod ends mate with are all elongated a little bit.
When the pushrods are inserted into their respective holes in the clutch pedal and the Z bar, there is about a 1/16 inch of slop that you can move the pushrod back and forth in the hole.
So my questions are.......
1) When I took this car apart for restoration, there wasn't any problem with the way the clutch operated. Should I just leave these parts alone and run with them?
2) Replace them with aftermarket parts? I hate swapping aftermarket parts for original GM parts unless it's absolutely necessary. It would be about $80 to replace and although that's not a whole lot, it's another unexpected expense and they start to add up after a while!
3) Is there any way to repair? I don't think there's much you could do with the pushrods. With the clutch pedal and the Z bar, I thought about two things. 1) Weld the holes shut and re-drill them to the right size....or 2) Drill the holes oversized and put a bushing of some sort in there.
I was set to try one of those methods but then realized the Z-bar is hardened steel. I'm not sure if a new hole drilled through the filler weld material would be as tough as the hardened steel it replaced.....and I'm not sure I could even drill through the hardened steel to put a bushing in.
Wondering what the thoughts are on this?
Thanks.....Dave