I got some U Tube videos ear marked I can post some links. They for 4L60E/700R's.
Biggest issue is just getting the valve body check balls in right.
Need a couple special tools.
Hiram Gutierrez on U Tube. His videos are tutorial. He disassembles tells you what each peice should look like. Problems they will cause if this or that happens. He is easy to understand.
I have done front pumps replaced bushings. They are not harder than anything else is. Few bushings, a planetary, bands, rest of is is basically motorcycle type clutches.
Just watch a video or two become familiar with the parts. Decide from there if you want to.
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