Annoying transmission pan leak 727 TF

I was under the impression that the RTV silicone was ok for trannys as the new gasket I put on my cirrus said to use the gasket or just put a bead of rtv around the rim,let it flash and install the pan.Since it was a rubber gasket I used it and figured if it leaked I would do the silicone trick.
The shift seal is a NIGHTMARE to replace while in the car.I used a metal srew to puncture the seal and some pliers to pry it out but getting the new one in is even harder,can't get a hammer in there to hit it good.I used a deep well socket to slide over the shaft to keep the seal straight.