Part Notes: All Models; NEW Process Gear 261; Auto Transmission; 4L80E (MT1); Without Heavy Duty;All Models; NEW Process Gear 261; Manual Transmission; MW3; Without Heavy Duty
Part Notes: All Models; NEW Process Gear 261; Auto Transmission; 4L80E (MT1); With Heavy Duty;All Models; NEW Process Gear 261; Manual Transmission; MW3; With Heavy Duty