[tubman]

Replacing worn, leaking throttle shafts is no big deal. I have done a couple of them. I got the oversize shafts from Mac's (in retrospect, there are probably better sources). I got a reamer to match off of Amazon. I removed the screws holding the throttle plates and the shafts themselves, reamed the carb base, and installed the oversize shafts.

The only caveat here is that the Mac's shafts have real cheezy arms on them. Luckily, they are held on by screws. I ground the "peened-over" end off of the original shafts, removed the original levers, and installed them on the Mac's shafts, using the Mac's screws and some red Loctite. Carbs run fine with no leaks.

Here is a saying I came up with after spending too much time in the Corvette community : "Real mechanics fix things, wannabees replace parts, and Gold-chainers pay other people to do it".