I love these things. my favorite fords are the 62-63 unibody "slick" F-100's, 67-72 "bumpsides", 91-97 F series and the 99-06 F-series.
The 390 is out of the 69 parts truck, and the 4 speed is out of a 76 F-250 crew cab. its still got the original 71 9 inch in the rear with 3.23 gears. I may...