i have a 452 new holland disc mower that had a bearing go bad yesterday. its under the next to last disc head - toward the end. to replace this bearing you must break apart the entire gearbox. i would have time to do this in the winter but am doing too much now and really need the mower to finish my second cutting. my question is - how much do ya'll think this would cost if i took it to a tractor shop to fix? i was quoted $46 and hour by one but they didnt know how long it would take. id guess at least 8-10 hrs. a local guy might be able to do it for much less but he might not can get to it for a while. whats a reasonable cost to fix this machine? thoughts?