23in x 40in x .040in Aluminum Wheel Tubs

The 23in x 40in x .040in Aluminum Wheel Tubs from Chassis Engineering are purpose-built components for serious automotive fabrication and custom vehicle builds. Whether you're constructing a competition drag car, street rod, or heavily modified show vehicle, these wheel tubs expand your tire clearance and suspension geometry options by extending the inner fender cavity. Fabricators and restoration shops rely on these components to accommodate larger-diameter wheels and upgraded suspension packages that stock body panels cannot support.

Constructed from .040-inch aluminum sheet stock, these wheel tubs deliver the ideal balance of strength and workability for welding and modification. The 23-inch width and 40-inch length dimensions provide ample material for custom fitment to most platform applications, allowing fabricators to shape and adapt the tubs to match their specific suspension travel and wheel offset requirements. Aluminum construction keeps weight low—critical for performance builds—while resisting corrosion better than steel and offering superior welding characteristics for clean, lasting joints. The material thickness (.040in) ensures rigidity under dynamic loads while remaining thin enough for precision cutting and forming during installation.

Professional fabricators, vintage hot rod builders, and motorsports enthusiasts benefit most from these wheel tubs when upgrading suspension geometry or fitting modern wheel-and-tire packages. Installation requires welding experience and proper fitment planning to ensure clearance with fully articulated suspension at full bump and droop. These are ideal for retrofit applications on American muscle cars, classic imports, and tube-frame builds where original fender openings limit wheel diameter or suspension components. Stock material allows customization—cutting, shaping, and welding—to match any unique build requirement or platform specification.