How to ID 1977-1978 Polaris RXL Shocks & Springs

These are increasingly hard to find, and explaining them over the interwebz is even harder.

On a 250 or 340 RXL - 1978 340 Superstock machines for sure:
You can count the coils on the shock spring on the side that the recoil is on, and you should come up with 10. On the clutch side, that count will be 13.

On a 440 (Triple) RXL, both sides have a 10 count.