Original post by: Jackie ,
I have a Super 10 top 2. If they are taken care of properly they will last a long time like any other transmission. I currently have 1,349,532 miles on mine. I haven't had any problems with it. I sampled the oil on it Nov 2010 when it was changed. Everything was fine except I just started shoving minor bushing/thrust metal wear. I have also heard Kevin say he doesn't like them but I remember the reasons he didn't like them was because you can't do progressive shifting with them. I'm not sure why else he doesn't like them. There is a shifting solenoid that can go bad and that will cause the splitting gears problem, I replaced mine back in 2006 when I replaced the clutch since they were in there.