I carry an IP, trans, rad, U-joints(huh huh, you said joint), filters, light bulbs, wheel studs, wheel bearings, brake line plugs, gallon of dot 5, 5gal water, 5gal oil, turbo, grease pail, brake cleaner, hand cleaner, rain x, de-splined hubs, MANY tools, a cell phone/cb/sw radio.