Upgrade to 2-5200 LB Drop-Leaf Spring Axles Teardrop Fenders .40 Aluminum Exterior 5" Tubular Main Frame 16" on Center Tubular Floors 16" On Center Tubular Wall Uprights 16" On Center Ceiling Supports Anodized Front Corners Aluminum Tread Plate Wrapped Tongue &Rear Header 24" Front Rock Guard Interior Wall Light Rear Ramp Gate rated at 4000 LB One Piece Aluminum Roof All LED Lighting 3/8" Paktite Walls 3/4" Paktite Flooring 2 5/16 Coupler 2K A-frame mounted Jack 84" Interior Wall Height