You can actually fits some pretty fat stuff in there but you have to make sure you have the suspension pretty tight or you may get some rubbing especially with the rear leaf bushings. I need to buy one of these myself,if I do maybe I'll start a rental of it as you prety much use it once.
68 Firebird 400 Convt 33 option car:tilt, cruise, AC, 281 trim code leather interior, PDB,PS,P top,headrest, rear antena, Ralley 2's, TH 400, Speedminder speedo buzzer, clock, tinted windows, floor mats, remote mirror, door edge guards, remot decklid release, trunk lamp, saftey track rear, am fm radio, visor vanity mirror, custom seatbelts, console,heavy duty air cleaner, exhaust extensions, tinted glass- all. All factory installed total price $5121.18 !!!