Steel 43in Tubs

The Steel 43in Tubs from Competition Engineering are purpose-built chassis components designed for serious hot rod and custom vehicle fabrication. These floor pans extend the wheelbase and cabin geometry of classic coupes and roadsters, enabling builders to integrate modern suspension geometry, wider tire packages, and contemporary drivetrains without compromising authentic styling. Whether you're constructing a street rod, vintage race car, or comprehensive frame-off restoration, 43-inch tubs are the foundation for maximizing interior space and suspension travel while maintaining period-correct proportions.

Manufactured from steel for durability and weldability, these tubs feature a 43-inch width that accommodates wide-track independent rear suspensions and modern brake components—critical for handling and stopping performance on both street and strip applications. The 1.75-inch flange design provides robust welding surfaces and structural rigidity, while the 76-inch length ensures proper integration with classic body lines and transmission tunnel clearances. At 46.3 pounds per unit, the steel construction offers excellent strength-to-weight ratio compared to fabricating tubs from flat stock, and the precision-formed geometry eliminates costly custom metalwork and fitment issues during assembly.

Competition Engineering tubs are ideal for restorers and fabricators building 1928–1948 hot rods, early muscle car restorations, and boutique street machines where modern suspension performance is non-negotiable. Installation requires welding to the existing frame or new chassis structure, making them suitable for builders with intermediate to advanced fabrication skills. Proper fitment depends on your specific vehicle platform and suspension choice, so consultation with your chassis designer or hot rod shop is recommended before purchase to ensure dimensional compatibility with your build plan.