Where can you find the worm gear for a craftsmen cultivator model 536292522?

Contact Sears parts and ask about the part. They may be able to order it for you if the cultivator is "current". Look at their parts catalogue on line .... it gives a pic of most products and all the parts numbers.

Don't know much about this product but I believe the worm gear is a major part. Long term it may be cheaper to buy a new cultivator.