Thought on the rear axle vent I learned the hard way, (from it getting clogged by "mud daubers/dirt daubers nesting in the open rubber hose our trucks come with) is to run extra hose up to the bottom of the bed area then back downwards and add a filtered vent, (many of them made in 3/8" hose configs).
For our newer members...
If you need some inspiration on your build by all means stop and look at what Jerry started with here!
Taking a cab from the rusted our floorpans and cab mounts to this stage is not impossible, (and look at the end results here)!
