Has anyone used or had any experience with Keisler engineering ? I have a '73 grabber with an O/D 4spd out of a granada. With the engine build I plan I seriously doubt the trans holding up. I want to run 4.10 or 4.30 gears and want the overdrive gear. They have what they call a " Ford Transmission Customization " option to make it fit where a toploader fits (Sounds to good to be true). Or would I be better off just getting a toploader.
