55.2-59 1956 Do I need to notch?

[BigDaddyK]

Good Morning All,

Finally getting my shop floor poured this week so I can build that and bring my 1956 home to start the project.

My goal for this year is a rolling chassis. I have already purchased a Heidts Mustang II IFS. It came with Standard spindles. They advised this ends up being between a 3 and 4" drop in the front. I want to have my truck level, and I plan on either building or buying a 4 link in the rear. I have a Ford 8.8 for the rear. I am using the original frame.

The question I have is this: Do I need to notch the frame in the rear for the truck to sit level? The stock frame does have a little hump back there, but I don't know if it's enough.

Thanks All!