I replaced the floor pans on my 6400 by ordering replacemens from Chevs of the 40's. They worked fine except they didn't meet in the center by about 2 inches. That was easy to fix. Yesterday I tried to put the fiberglass transmissions cover in place, and found it rubs on the cover over the emergency brake on the driveshaft. Has anyone run into this before? How did you handle it? Thanks Allen