4.12 Mod Rear w/o Tubes Saturday Night Special

This Diversified Machine Saturday Night Special delivers a 4.12 gear ratio in a modular rear end built for street and strip use. Drivers who want strong launches and responsive acceleration will find this low-ratio setup hits the mark. It balances tire-shredding power off the line with solid highway drivability.

Diversified Machine uses modular construction here, which gives builders room to tune and swap components for their specific engine and driving style. The w/o Tubes layout removes factory tube constraints, so fabricators get full freedom with mounting orientation and suspension geometry.

This unit suits American muscle cars, hot rods, and late-model performance platforms that call for a true 4.12 ratio without OEM limits. It is a clean, fabrication-ready differential for owners who want more control over their rear end build.