Flywheel inspection cover install

[wpavlis]

So, of all the things that have caused me trouble getting put back together this one makes me feel the most stupid. This shouldn't be that hard. I have tried sliding this thing from several angles and just can't get it. My truck came from the factory with a 307 and a 3 speed. I swapped in a 350 and kept the 3 speed and bell housing. I have an aftermarket oil pan, but it is standard capacity and looks stock. It seems as though the pan is what's causing the issue but it's hard to tell. I am tempted to get out my grinder and clearance the inspection cover. That or a hammer to get it past the pan. Anyone else ever had this issue?

Thanks.