Ford Performance- 8.8" T-2 Torsen Differential (31spl) 8.8" differential Fits 31 spline axles Torsen T-2 type differential Features full time torque-sensing, torque-biasing M-4204-T28 fits solid axle and 1999 Cobra/Thunderbird/Mark VII with IRS (2000-04 Cobra has 31 spline) MSRP: Was: Now: $721.99 Add to Cart