We were on a quest to locate an automatic transmission that would perform well with our supercharged Ford. With one phone call to TCI Automotive it looked as if we had struck pay dirt. Their 35+ years of experience helped to fill our tall order. Our Quest had us seeking a dyno proven transmission that could deliver the crisp response we expected from our projected 425 HP. We also wanted to hold on to some of our drive-ability by way of an overdrive for those longer highway journeys. I guess you could say we wanted our cake and to eat it too! To dial in on the right choice we would need to first consider the car's weight, engine configuration, hp rating, gear ratio, tire size and desired performance characteristics. With the help of the TCI tech department, we opted for one of their "Street Fighter" series AOD 4 speed / overdrive transmissions with an optional deep pan for some extra cooling. We added a "Street Fighter" torque converter and one of their SFI Flexplates to compete our package and were in business.
After setting our new transmission in the chassis we needed a way to shift our rod into gear. There are many different automatic shifters available today but we opted for one made by Lokar Performance. What makes this shifter stand apart from the rest is their very simple low profile mechanism and fully adjustable direct mount bracket system. This system allowed us a larger window of adjustability when it came time for the final placement and made it very helpful when fitting to a small space. Best of all, Lokar products come with a lifetime warranty which is proof positive that you are buying a quality product.
Out back we were set up to run a shortened Ford 9" but we still had some work to do on our rotating assembly. We considered rebuilding the cast 3rd member that came with our rear end and then decided it was time to "kick it up a notch". We found an aluminum 3rd member from Winters Performance that we loaded up with a new ring & pinion, billet aluminum yoke and Auburn Pro series Limited slip differential. Auburn Gear is well respected in the performance differential world. What makes their differential so effective is it's ability to deliver more traction with lightning-fast response to changing load conditions. The other reason we really like this unit is its ability to be rebuilt instead of replaced Auburn Gear sells a service kit when any worn parts need replacing.