I have this track on my cat as well. I noticed that people mentioned bigger upper bogie wheels. I couldnt help but notice that my upper bogie wheels (near the drop brackets) are tiny! They are basically the size of the shaft bearings, in fact I think they are the same thing!!
Im having a hell of a time getting the track/suspension back on, it was a PITA to get off in the first place. Should I be trying to get the front mounts in first and then the back? Or the back then the front? I tried both ways but couldnt get it to line up. Gonna try front first again tonight but this time sit the sled on its side like what the manual says to do (I think I just left it on a track stand last time)
If I cant get it on tonight ill take some pics.