Brand: Eaton

Eaton Detroit Truetrac is a line of helical-gear limited-slip differentials for front and rear axles in street, towing, off-road, and performance applications. Unlike clutch-type limited slips, Truetrac operates automatically without clutch packs, special friction modifiers, or routine internal wear-item service. OmniGarage carries a Dana 30, 27-spline application for 3.73-and-up gearing, while Eaton also lists 2020-2025 GM 2500HD diesel trucks with AAM 11.5-inch rear axles, along with Ford Bronco/Ranger, Ram, and GM pickup applications. For towing in changing weather or finding traction off pavement, the appeal is smooth torque biasing without the behavior of a manually engaged locker.