CHEVROLET/GMC 700-R4 2WD extension housing specifically for the Sonoma S-10, this extension housing has 4 Bolts to Case (No Bottom Mounting) (2" (Large) Speedo) (Cast 8642547) fits on 1982-95, The part number for this top-quality item is 74770A-P and it comes with the assurance of unmatched reliability and durability. Suitable for use in a range of vehicles, this extension housing is a must-have for anyone looking to enhance the performance of their transmission. Whether you're a professional mechanic or a car enthusiast looking to take your vehicle to the next level, this extension housing is an excellent choice.