It might be a little uncomfortable for someone your height...But that box is the maximum a box with a depth of 7~8 would be great for a single cab. And Im running a set of subs with a decent sized mounting depth~6.7 inches. But one thing is for sure, its not a good Idea to run a trapazoid style box where the front face is angled, because then you run into problems with the sub smacking the seat.