To change the drivers you need use a press to get them on and off.
(this is a copy/paste from Tracks USA)
3" pitch tracks were introduced to the market in "04 by Arctic Cat. Historically, tracks have been made in 2.00", 2.52", and 3.29" pitch. (Pitch is defined as distance from center of one lug to center or next lug going around the track). Most track engineers will agree that when all other factors are constant, the shorter the pitch the faster the track will run. Shorter pitch track==higher speed.
Track weight seems to have little to do with top speed in tracks of 1.25" and lesser lug height. Many a snowmobiler has related how their Polaris 144" Switchback sleds are no slower than 121" units with the same motor. I can remember the same comparison 15 to 20 years ago with Polaris Indy 650's with 121" and SKS 141" tracks--often the 141" was faster top speed!! Maybe a little bit slower accelerating sometimes but the increased traction often overcomes this factor. Remember these two factors when comparing competitor 3.00" pitch short tracks with the industry leading Camoplast Ripsaw!!! BUY PERFORMANCE--BUY RIPSAW!!
The current 3.00" pitch mountain tracks are the result of seeming demand for lighter weight and taller lug design tracks. A 162" mountain track with 2.52" pitch and 2.5" paddles would be too heavy to offer any performance characteristics or marketability. Thus we have the current rage of 3.00 pitch tracks. Are they the best performing??
In a "off the record" conversation with a track engineer this summer he related comparisons last winter in the mountains between 2.52" pitch tracks with 2.00 paddles and 3.00" pitch tracks with 2.5" paddles. He stated that many times the 2.52" pitch track was able to achieve so much greater track speed that its performance was equal to the 3.00" pitch track. I am sure different snow conditions would affect this comparison.