The strongest of the "Muncie" based 4 speeds, the Auto Gear M23 is your answer for strength in those higher HP and torque applications where an M20/21 or even M22 just won't do. Very strong, updated design in first gear area makes these very desirable for the big engine crowd. The Auto Gear "Thrust Button" main case, NEW SUPER STRONG yet lightweight Auto Gear Aluminum mid plate, super strong tail housing, sealed full width bearings and more all add strength to this already strong gear train. The modular countershaft cluster gear, allows for many ratio combinations that heretofore were not possible. Vented tail, sealed input and available "Super Finish" on internal parts are just few more of the upgrades and changes that make these units far and away the best on the market. These units can, and in most cases need to be "custom" designed to your vehicle and it's intended use. Many ratio combinations are available, PLEASE contact us to help you with what will work best for your application and intended use. 877-614-4327 TOLL FREE CALL OR BUY ONLINE.
Note: All Muncie 4 Speeds are Built To Order, Call Us With Your Application for Current Build Time and Delivery Date.