I have the same issue. Fortunately, a member of this forum had a used pushrod he could send to me. I have a 1962 235.
I searched the net for new pushrods. Melling MPR-32 and Sealed Power RP-3020 are supposed to be replacements. The Melling appears to be the same length as my stock pushrod (11 5/16") but is 1/16" thicker which is OK with me. The Sealed Power pushrod seems to be longer than stock by 3/16.
I'm pretty sure that the 216 and 235 have different length pushrods. See earlier discussion in the link below. The adjuster screws are the same.
https://www.stovebolt.com/ubbthreads/ubbthreads.php/topics/703038/bent-235-push-rod.html
