The Pro-Ride sleds were the 2.86" pitch series 5.1 track. If yours is a 2.6" lug series 6 (belt drive if you have an RMK), it is 2.86" pitch and the pro ride track will be a direct fit.
If you have the 3" lug series 7 track (chaincase models on rmks), your drivers will need swapped as they would be 3" pitch.
In my opinion, the series 5.1 from the pro-ride sleds is not a very good track. It will be more durable, but not perform as well as either Axys track.
Personally, I would look into the Camso Challenger 2.5 or Peak 2.5 if yours is 2.86" pitch. They're not used-track cheap, but they're a lot cheaper than getting a new Polaris track. If you have the 3", look at the Camso Challenger x3.