Caradco operator arm too long

A quick learner from Bend, Oregon says:
I ordered the Caradco crank 39-155 but the short arm is 3-13/16" compared to my Short arm length of 2 3/4". What operaor do I need.
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Dave Sr. from SWISCO responded:

Hello there. Hm, that is strange! The 39-155 is very often the right replacement for Caradco units. That said, take a look at our 39-334; this operator, as its name states, has an extra short link arm. Review the dimensions and see if you think this might work better for you. 

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