which part number from LMC? I used what I think is their "full floor panel" for my 64 C10 drivers side floor and it was not truely full floor- it extended from past the seam behind the pedals to just past where the pan rose under the front part of the seat and from the sill to the edge of the transmission hump- I remember feeling a bit ripped off becasue 1) it wasn't truely full floor 2) the added cost to ship this "oversized" and 3) for what I paid it wasn't a perfect match- closer than some panels I've used but not close enough to warrant the cost- as it was I ended up leaving as much original steel in as I could and hacked up the floor pan half to just replace what was rusted out and gone- I didn't like the dimple they had for the cab mount it didn't look like the original at all- another reason I hacked up the repair panel- I wanted to keep the original mounting hole/dimple.