Just curious, are drivers inter-changeable between speakers. For instance, I have M60v2 and M3v2 are the woofers and tweeters the same?
Thanks in advance.

This would be better sent to Axiom directly with the serial numbers, but in general they are meant to be interchangeable to minimize production cost and parts inventory for older products.
I have recently had two separate problems with drivers and used identical driver from a third, unused speaker and when re-measured, the fr curves were nearly identifical.

A lot depends on when they were manufactured. Some of the drivers in the later M60v2's are the same as the v3's, minus the white dust caps. You would have to email Noreen at Axiom and give her your serial numbers to see if they are the same for your two speakers.

Why do you need to swap them?