be sure you are useing the right gaskets, some of the pans used a dif, rubber seals. did the gasket set have more than one rubber seals? seem like i ran into that a long time ago.

I used the thick front seal from the gasket sets. After dummying up the thin seal there was a large gap and it would have never sealed. To be honest, the thick front seal seemed a little too thick and became quite squashed after installation

At the moment, my rear seal is leaking. The past times it has leaked, all has seemed fine for a while and then a small leak would start at the front usually and then followed by one at the rear and they just seem to get worse the longer I leave it.