Guys, I bought all 4 floor pans for my 64 from Classic Fab. 18 Gauge metal, which is thicker than the original (I think), but we had a helluva time getting them to fit. Had to do a lot of cutting, trimming, and re-bending. Plus, they didn't align correctly. Turned out to be a B**** of a job. 16 to 20 hours on each front floor pan.