Chip , I had this issue with one of my 727's , not sure why the other did not , but , As with all other replies , yes have deep pan & stock dip stick . I had placed a plastic bottle on vent tube , just because I wanted to know just how much it was spitting out . In my case I found it was over filled . Having talked to many folks on trans oil level it was the general consensus to not fill over where pan bolts to trans . I also installed an aftermarket dip stick which was marked also at pan gasket line . No more pushing out fluid . My plastic bottle is still on there but no fluid inside .