3.55 gears and dual cylinder master

[oldbluetruck]

I added these two features to my 48 1/2 ton. Drives smooth with no noise and brakes feel fine. Now I need to get the speedo adapter in place so I know how fast I'm going. And change the oil. Zoom Zoom

 

[1951 chevy blue]

What else is in the drive train? do you have a better top end?
Mike