This Master rebuild kit is designed for GM 4L60 and 4L60E transmissions manufactured between 1993 and 2003. The kit includes an overhaul kit, friction pack, and steel pack to ensure your transmission is in optimal condition. The kit is compatible with ALLOMATIC, PRECISION, or TOLEDO brands and is made from plastic, rubber, and steel materials. The kit is manufactured in the United States and is ideal for those looking to improve the performance of their transmission.