Here is an inexpensive homemade gearbox puller.
The cost for a gearbox inspection including parts is about $450 and if the shaft is
bent past the acceptable limits then that is another $640. About 70% of the shaft
flanges are bent, just many people never bother to check it or know how to check it.
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Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080