Since I do have a 2013 truck engine I have the factory tray already so that answers another question I had! The one thing I like about the steel pan from Milodon over the cast aluminum from Holley is I can modify the pan a little easier if I have clearance issues with the centerlink. I'm curious to see how it sits in my 74 Duster with spool mounts too. I have a feeling I'll be good to go. Still just a bit nervous ordering the Holley pan using TTi mounts for reasons above. I might just keep waiting to see how Dion's mockup goes!