Maybe start at the other end of the system, and work backward:
https://www.gccpd.com/product.asp?it...IaAkEFEALw_wcB
Begin with the snowthrower or implement tracks. Find the proper rear drive hub, and idler hub, and tension arm hub. Then one only needs to drive the rear hub with the takeup tensioner arm hub on top of the track. No need to drive both axles on a tracked drive setup(although some do, it's not really needed).
If the front hubs can be on spindles, they don't even need to be on a through axle. Will allow the front driveshaft to mate to the PTO with a UJ.