Using 39-107FK instead of 39-323

A quick learner from USA says:
I have a general question; will the 39-107FK replace the 39-323 cover?
Thank you in advance for your time
Randy
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Paul from SWISCO responded:
Hey, Randy. Yes, the 39-323 and 39-107FK should be interchangeable. They are both made for Truth operators with centered splines.
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