Hi Guys, Before Installing a 3 speed with the BW overdrive I have some questions in relation to a 1950 3/4 Ton. As of now I have the 4 speed with enclosed torque tube front, carrier bearing,and open driveshaft to rear. which I will remove and plan to have a new driveshaft made. Should I go with a 1 piece driveshaft? I am also going with a smaller 10" clutch disc and pp from stock 11". Any suggestions/tech please!