Not sure what a "crewmax" is, but JL audio makes a stealth box for the Tundra that fits under the center console. Not sure if it fits your '01, and you must have bucket seats, of course.
I think he may have been kidding!To the above poster,
I dont know why you would want that much bass in a truck, but it's yours. My question is, have you thought of anything else besides the MTX. They are not very highly regarded in the car audio community for much other than getting kinda loud, no SQ. Try www.tc-sounds.com or Image Dynamics for some woofers that would blow those MTX's out of their box!! I am not trying to sway your decision, just giving you a chance to get a better higher SQ sub for way less money.