I think its a bit nuts to rebuild a transmission that works. Just reseal it and drive. I have done maybe 10 or so domestic automatic rebuilds. They were no more difficult than assembling an engine. The main problem as noted is having the correct tools and an assortment of parts. I was lucky and had access to this stuff at the time. If you are truly able to live without the car for a long period of time and want to learn how autos work, feel like buying some special tools and run around sourcing parts then go for it. It will be an experience. RT

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