I assisted with my first automatic trans rebuild in 1958, at age 12. My father was one of two mechanics in Nashville, Tennessee who started rebuilding automatics after WW II, so it's sort of been in the family ever since. Any kind of hydraulic system work is terribly unforgiving of mistakes, so I'd suggest enlisting the help of someone who is very familiar with the trans you're planning to build. A Turbo 350 is one of the simplest automatics to rebuild, and it's got at least 20 places where an inexperienced rebuilder can make a serious mistake. The Turbo 700 is worse, because of the way a series of interlocking clutch disks have to align with a set of progressively smaller splines. Just miss the engagement on one clutch disc, and the end play is wrong, resulting in a locked-up input shaft or rapid, massive wear if you force it together.

I think you need to find a pro willing to let you observe his work, at least for the first several rebuilds!
Jerry

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