Not really. Any good machine shop should be able to make them for you as they are a pretty straight forward piece. Order the bushings, 291548 before you have them made to give the machinist the ID dimensions of the bosses being made.
Parts book for the 740 loader show what they should look like:
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Alternately, you could call a salvage yard and see if they would have or take off the bosses on a junk loader.
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