southbend 3600DD install

[JFinke]

I'm putting a new 3600 DD in my 2006 this afternoon and they sent a picture that shows where to grind the bellhousing that looks like the copier was using crayons to print with. It looks like you grind the two bigger ribs that line up with the lower bolt holes. The instructions say to "remove 1/2" down 2" lenth of bell housing web at points shown" Can somebody write a description that will work without the picture. Thanks. Jake