This Schumacher factory replacement V4 Diff T-Nut Insert and Screw set is designed for the Cougar LD platform differential assembly. The set includes the T-nut style insert, a smaller cylindrical collar piece, and a metal screw, providing everything needed to rebuild or repair the differential housing. Designed as a direct-fit replacement, this hardware ensures proper diff retention and alignment in the gearbox. Features: Includes T-nut diff insert, collar piece, and metal screw Designed for V4 differential assembly Factory replacement diff hardware for Cougar LD platform 7/7/26 cs