I’ve had three of these, all different sizes, and none would ever even begin to fit behind a seat of my trucks (02 f350 crew and 07 Tundra crew), you might want to see them in person to double check. Rural Kings stock them around me. If your interested in them at least go to montezumas site, there are tons of different models, the one I just retired one when I got my Tundra (box too big), held full sets metric and standard wrenches, sockets long and short 1/4, 3/8, 1/2, with room to spare.
I decided to build one out of aluminum because I knew exactly what I wanted (smaller) and needed the tig practice.
As for noise, it is very noisy, but I have helped it some with what I call bin caulk. It’s a high density foam about 1 1/2” wide 1/4” thick that’s one side peel and stick. It’s used to seal the panels of grain bins as you’re building them. Stick it where the hanging wrenches hit, the only noise will be the sockets and wrenches hitting themselves.
They are wonderful with a crew/group setting because you can tell exactly when something is missing. I actually take mine out when I go camping/overlanding because of the space and weight.
