The aluminum TC-600 Space-Pak provides 62 cu ft of storage in a convenient behind-the-cab location. The four-door compartment is available in a tunnel version that fits over the chassis frame by 14 in. or a flat-bottom version that sits on top of the chassis frame for the full 60-in. mounted height. It’s 314 lbs; 60 in. high; 87 in. wide; 24 in. deep.