Based on those pictures, I'm going to say your front cab support is rotted away.
[on edit] Looks like you might be able to unscrew that added floor material. The bolt head is aft of the parking brake pedal a bit. Maybe they just covered the depression where the bolt head is.
Last edited by klhansen; 04/05/20246:56 PM.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.