Hustler Super Z right drive chattering and freezing

[Unclelee47]

I have an older Hustler Super Z that has about 2000 hours on it. The right drive seems to chatter when i attempt to drive forward. If I very lightly press forward it seems to move slowly but if I push it the lever chatters and sometimes the drive belt squeals. :frown: I have removed the drive belt and the drive motor seems solid with no excess bearing movement. Is this a drive motor going out? If so, is there anyplace to get a replacement at a reasonable price?

Thanks