30905 Truth operator replacement

A quick learner from Md says:

Hi, have looked all around hoping you can direct me to this stripped crank The arm has 30905 Truth stamped on it. ive seen close like 39-172 but not same.

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Emily from SWISCO responded:

Hello!

Our 39-171 should work fine for you, yours is just an older version. The only thing Truth changed was the shape of the base, which has no bearing on function. 

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