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The Ford Racing Torsen FR500S differential is a high-bias, torque-sensing unit built around a worm-gear friction system that differs from clutch-style limited slips. It’s specified for FR500S race applications and uses a T-2R Torsen mechanism to transfer torque smoothly to the wheels. This service differential features an 8.8 in. ring gear, 31-spline axles and a 4.00 gear ratio, delivering durable, predictable traction for street, strip, or off-road use.
Ford Racing Mustang FR500s Differential
