Steve,
I fumbled around rebuilding my first one without a jig. Certainly would have made it easier, so definitely build one.
I was always apprehensive about rebuilding an automatic but it isn't hard. I used the book and an old Chrysler video a member sent me. I kept rewinding the video to double and triple check everything. Someone said "keep it very clean, so I kept swapping the brown paper when it got dirty, lol. Been beating on it for 5 years now!
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