Silver Fox Performance Transmission specializes in Ford AOD and AODE / 4R70W / 4R75W overdrive transmissions for performance use. On-road to off-road, stock to pro drag, classic muscle to Factory Five roadsters. we treat every transmission as though it is your last! Silver Fox Performance Transmission beats the standards the competition has set for reliability in all its products. We are constantly developing new valve body calibrations, engineering new parts, and testing ideas. Form mild to wild, we take pride in your automotive hobby. We have shipped products to all 50 states and all over the globe.

Valve bodies are a major focus of Silver Fox Performance Transmission as well. Dan (the owner) has spent many years designing ways to make the obsolete AOD, and its sibling transmission the AODE / 4R70W, do just about anything you can dream up by manipulating valve body circuits, flow, and function. If you have a valve body you like, but it is not quite what you were hoping for, Silver Fox Performance Transmission also offers the service of calibrating and testing valve body from its competitors.

As time allows, Silver Fox Performance Transmission will be adding transmission parts and components sales to the website. Please browse the Files section for product instructions, helpful tips, and FAQ items – you will probably spot a rant or two of Dan’s as well.

Silver Fox Performance Transmission does not offer R&R services and is strictly a bench-build operation.