I've purchased a replacement seal from a local parts house and a used clutch rod "from a '77" from Sport Wheels junkyard, only to find that my clutch rod has a fatter midsection with what appears to be a bearing surface on the fat section, while the replacement is uniform in diameter except for the oil slinger. The ends are identical however, to the point where I'm wondering if I can just run the replacement I received without issue, or if I need to find myself the exact replacement or sleeve the one I have so it'll fit.
I guess I'm concerned about it sagging and whipping at the midsection at higher RPM's, though I'm not sure if that's a valid concern or not. I could definitely turn and braze a new midsection on my lathe but it would be a tight fit and I'm worried about finding the time to do it and bending the new rod when I install it.
In case you are wondering the part # for the rod has been superseded and all part numbers are NLA from every parts house I've called.