[crakarjax]

I used a camaro pan with camaro windage tray (like $25 shipped on ebay fyi) and had no issues with bolts lining up. You could also modify the truck windage tray, it's a pretty simple piece after all.

Not sure what you're referring to with aligning the gasket, as the bolts should line it up pretty easily. I did not have any alignment pegs on mine afaict.

Now that I think about it, I think you might have the wrong pan... the back bolts definitely line up on my 2004 ecalade engine to the f-body pan.