Have a 1927 model tt truck, thinking of putting in a kc warford transmission. What can I expect to get top speed. Thanks
About 30 mph if you have the low speed gears in the rear end, 45 or better with the high speed gears.
My TT has low speed rear end gears and a Muncie. I believe the Muncie and the Warford have similar overdrive ratios. On flat ground, flat out maximum speed with a tail wind is 33 MPH, but I wouldn't cruise at that speed. 25-28 MPH is much more comfortable.
If you add a Warford and your truck doesn't already have auxiliary brakes, you'll need to add them as a party of your project.
If you are serious about the KC, then check out the TT version they make. I don't think you will regret it. The OD will help you out on top if you are looking for that. You will need the high speed gears to get your cruising speed up there. And as the guys always remind us, you have to have motor to pull the gear and brakes to stop it. I will say the KC is a neat little box that you can easily shift. I have very little drive time on mine, so I won't try to tell you what it really can and can't do but you can at least do your math and figure out the rpm vs speed you will end up with. Good starting point to figure out what you want to do. Then the HOW and $$$ kicks in! Good luck