Bluebird, I did some checking on that & I can change 1st through 3rd on a Saginaw but I couldn't find anything to modify 4th. I'm hearing from a lot of sources that the "Sag" is too weak to even mess with & I should ditch it for a Muncie. Muncies aren't cheap though & just swapping trannys isn't gonna help me...unless...(this brings me to bigchiefs reply) I find out I can change final drive gears in a Muncie. I'll do some research on that. Thanks guys for the alternatives.