I tightened the kickdown band before pulling front oil pump and then re-adjusted it prior to firing it up.
.... Never took off pan or touched anything other than front pump (to replace seal and bushing) and kickdown band adjust.
I am thinking that since you didn't pull the pan, the only things I can think of are:
1) Front drum with clutch pack not engaged correctly when reassembled (as somebody mentioned). But typically cannot get things back together if this happened.
2) The rings on the support or input shaft were damaged when reassembled. Leaking fluid passages to wrong places.
