I have been unable to find floor covering that fits worth a dang. Ordered molded from LMC. Its bad. Deformed and couldn't get into work. Ordered flat mat. same deal. Any suggestions on floor covering other than carpet? 1966 F250 4x4.

 

You could always put a spray or roll in truck bed liner on the floor

 

This is the one that I ordered from Macs, it is thick vinyl and comes with a small insulation. It fit pretty decent, it has a bunch of questions to answer to ensure the correct fit, auto/manual, hi hump/lo hump, in cab gas tank ect..

Ford - Ford Pickup Truck Vinyl Flooring - Regular Cab - Black Vinyl - Macs Auto Parts

It goes from the firewall to the rear of cab under the gas tank

 

I ordered the one from Mac's as well. I used a heat gun to take most of the wrinkles out.

 

We used a vinyl floor mat from stockinteriors.com. Fit the shape of the floor very well.

https://www.ford-trucks.com/forums/1...thread-31.html

 

When ordering floormats for a '65 and 66' F 250 4x4's or F 350's, just order for a '64 F 100 instead. There books make not be aware the old cab floor was carried over for these models.