did you rebuild the shock after last season? i got rid of my smart ride suspension. my dealer also bought one with me and he started having a lot of problems with it. i am sure that alpha sports would have a replacement shock or maybe you can rebuild the old one.
got rid of the whole sled. in the owners manual it says that the shock needs to be rebuilt, i didn;t do it but my dealer made it sound like a big deal. they say that the shock moves up to 1000 times per second so i can see why it would wear out. i would think that you would be able to put a regular shock in and have no problems. call your dealer they would know
If your sled is riding low, I would also check your springs, as the shock really doesn't support the sleds weight, only dampens the ride.
I also had a problem with the SS rear skid shock on my 02 T-Cat. The aluminum casting cracked and I lost all the oil. FYI... The SS shocks can be rebuilt, and can also be re-valved if needed, at least that is what my dealer tells me. It's probably cheaper to rebuild than replace with a new standard shock.