Since your cab is a 67
In order to keep the braces in the rear of cab/ floor
some modification has to be done.
Check out page 2 of my build thread
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The early bird gets the worm,
But the second mouse gets the cheese
84 Chevy K-20
63 Impala (my high school car)
http://67-72chevytrucks.com/vboard/s...Crew Cab Build