>Bob,
>I am having the same problem as Dan, finding the bushings. When I
>tried to look up the part number that you specified below, AC said
>the part number doesn't exist. Can you give me a better part number?
>Thanks,
>Lorn

Apparently the bushing stock has been discontinued.
Try part number AA309-5. ( 3/16 ID, 5/16 OD)  The ID will have to be drilled
out to 1/4.   Length is 3/4 (trim to required
length) and price is $0.57. You can  find the same part on their on-line
catalog.
Bob