<VV> Early 4-speed 1-2 / Reverse interlock

[Doug Mackintosh]

My daughter's 1964 Spyder convertible that we refurbished back in 2000 has logged over 120,000 miles since then. It recently got stuck in reverse and would not come out. So I backed it into the driveway and dropped the powertrain. I am currently in the process of tearing down the transmission.
I have removed the 3-4 shift fork and rod and 1-2 shift fork and rod and all the associated detent balls, springs and interlocks (the 2 oblong "balls" (one between the 3-4 and 1-2 shift rods, one between the 1-2 and Reverse shift rod, shown in Fig 6D-51 on p. 6D-24 of ’61 manual). One of the interlocks (the 1-2 / Reverse one) has gouges in the end so it is no longer smooth (see attached photo). I am not sure, but I suspect this was jamming the shift rod and preventing movement out of Reverse. The other interlock is starting to show a small indentation on one end also.
It looks like Clarks C9860 interlock is out of stock and the used part CU1678 is also out of stock. Does anyone have a source for these, or do you have a couple you would be willing to part with?  
Thank you!
-- Doug Mackintosh Corsa member since 1996 Corsa/NC member since 1996, Virtual Vairs member Corvair owner 1969-1971 and 1996-on
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