[Chuck78]

Ron, the lengthy explanation a few posts back on page 2 really answered a lot of questions. First off, I had no idea that the panels didn't have the standard p/u bed wood! I thought someone just replaced it with plywood and that it was not properly done!
Secondly, I think mine is 3/4" oak plywood. You say it's two pieces of half inch? Two pieces stacked? or did you just mean a left piece and a right piece? One layer of 1/2" seems pretty flimsy for a floor to me. If it is supposed to be half inch, and I have 3/4", that is another big problem that I'll have to deal with.

Also, the previous owner did apparent;y replace the bed wood. It was refinished top and bottom, even in places that you could not get to without taking it off. Also, everything under the bed wood was stripped and painted nicely at the time, where under the cab and forward are still factory finish and some rust here and there... You can tell the stuff was painted from above with the wood out.
I also had no idea how incredibly hard it was to remove the bed wood! I should plan on an entire saturday to do th is project then, and keep my Sunday free just in case.

I got your dimensions and all from the GMC forum. The ones from Harmon's that I posted for 73-80 Blazers do not list any dimensions, that is why I posted them (as they may possibly be of help to us 60-66 guys, but not sure). I sensed that you were a little upset about something in your reply to that, and I took slight offense, as I didn't understand why you were being short with me, as I was posting separate questions and info from what you had told me. Sorry if I somehow confused you. Your answers on the GMC V6 list solved some of my questions, but I have more as well, which I asked on here, and you apparently had thought to have already answered those questions. I still don't know the dimensions of these blazer units, but they look fairly similar. I know you posted about the 67-68 Suburban mounts, and said the 69-72 were slightly different, but you did not know the dimensions. The ones I then brought up were not 67-72, nor suburban, they were blazer mounts 73-80, which I don't think had been discussed at all on either site yet (unless I didn't receive my daily digest email on the GMC stuff somewhere along the line).

I worked under my truck a lot last night, and had the gas tank out. I tried to pull a string as best as I could, and the frame does not appear bent down in the rear, and I also visually inspected the frame, and there were no signs anywhere of any disfiguration or stretching, stress, crinkles, etc. In fact, the beefiest part of the rear frame is the section about 16" back from the axle. I spent a lot of time cleaning out a hundred or two acorns out of there with the tank out last night! Thick metal, double "C" welded together to form a box. I definitely agree that it would take A LOT to bend that.