Pulled it because the machine was down in the middle of season in the middle of the road, and I was advised based on symtoms that it was mostly likely trashed, and there were not usually enough good parts to make it worth repairing based on the price structure between individual parts vs reman.  I admit I did not really investigate that fully at this time....right now having it running again tonight is probably worth more then the cost of the wheel motor...it warranted I can rebuild the one we removed at a later time, or have it rebuilt. 

What do you do to them on the machine?  Rebuild in place?  Are you able to do so economically with the parts prices compared to a reman?   I hope so, but that was not what I was advised here.