Structure, I am in Tulsa, doing 2 gm pickups 1 66 gmc 1 65 chevy, I am in the same spot you were the last time you showed pics, cab off the frame working on the floor of the 66. Give me a call at the shop or if you are on the the west side of Tulsa stop by and see my build.......here is a link to pictures of my 66 gmc, the pics toward the end show the rust on the floor of my truck which is not nearly as bad as yours. Oh we used the same color scheme on our engines I really like your 5.3 I used a 5.7 TBI out of a 91 suburban...........cheaper............. I would love to see your truck call me at the shop 446-2245 Kieth
http://kieth.smugmug.com/Trucks/66-G...67555158_RNLWE