Just finishing putting in a 4BT into my 1965 GMC K-10 added a 5 speed. Had almost 8" left over using the stock radiator location. Drove nice, 900lbs over the front axle. 6BT will be more, sat nicely between the frame rails. Rear quarter panels are just being painted.
Grigg sent me over to 4btswaps when I asked about putting one in here. Great site.
One guy has a 1963 crewcab with one installed. Jeff
