The Keisler PerfectFit" System is the easiest and most complete way to put a high strength, modern overdrive Tremec TKO 5-speed in your Street Rod, Truck, or Kit Car.   Our Keisler Custom Engineered PerfectShift" Tailhousings and Shift Mechanisms provide the smoothest operation and the shortest throws in the business. Enjoy a PerfectFit transmission with low RPM cruising, and great fuel economy today.

The Keisler 4-speed Automatic Overdrive for Mopar combines modern plug-and-play electronic controls with fitment to any Small Block, Big Block, traditional Hemi or New Hemi engine. Complete systems are available for most models, and include everything you need for installation—including use of your original column, floor or slap-stick gear selector. Enjoy an automatic overdrive transmission with low RPM cruising and great fuel economy today!

Keisler Engineering offers a wide range of products to choose from to make your pride and joy into the masterpiece you've always wanted. Click 'Select' below to show accessory categories for your vehicle.