I would take the drive line apart, maybe even remove the drive shaft and clutch assembly completely, and inspect everything for wear. Those springs should last forever, or well, maybe 40-years or so. Something else is wrong causing excessive play in the clutch and breaking the springs. Also, look closely at the broken pieces, and maybe remove an unbroken one to see if they are being cut by the clutch disk. It could be that the rubber drive shaft couplings are worn out letting the drive shaft and clutch flop around.
Another thing to check, the quietline tractors are known for wearing out the rubber ISO motor mounts. The 1000 series tractors are much worse about it than the x82, but they do wear out commonly. If the motor mounts are worn out they let the engine move around inside the frame, and put the clutch out of alignment because the engine torque pulls it around inside the frame. This causes the drive shaft and clutch parts to wear out or wear excessively. Also, it will wear out the motor mounting bolts, the oil pan, and the frame, where they all start touching and grinding into each other. If you can grab the engine and shake it side to side, the motor mounts are worn out. A lot of folks don't even know that there are rubber motor mounts in those tractors, so I've seen them completely gone and the engine just flopping around in the frame. I saw one that the oil pan was worn down about 1/4" on one side where it had been rubbing on the mounting and the bushing was completely gone.
Anyway, don't bother with some replacement for the springs until you check all these things. Otherwise, you're not really fixing the problem.
Bill