Anytime. I own a 64 truck and 2 67 econo trucks. So tearing them apart years ago was where I learned this stuff. I also have 2 manuals one for 61 and the other for 65.
My trucks need to be restored and I hope later this year or at least next year to finally start on my 64.
There are a few others here with multiple econo trucks and vans. Oh I have to vans that are donors here also. The one is nearly rust free, had an accident the bent the frame up Cost more to repair the frame so sheet metal donor it will be.