Pulling Engine/Trans over the winter....Header Question??

P.s. I hope you didn't infer that I thought I was a trans expert. That would be the farthest thing from the truth! But I think I could certainly do the routine things like clutchpack replacements, endplay settings, assembly, etc. Maybe one day I'll have to put it to the test - but hopefully not soon!!
I would like to do one myself. I do like challenges.When my hardtop had the slant in it I lost reverse band. I had a junk core so I slowly disassembled it on my bench keeping everthing in order until I got the reverse band out. Then pulled my tranny and replaced the band and adjust both bands. No manual. Worked like a charm.