My buddy would like to replace his original non synchro 3 speed column shift transmission in his 55 Customline 272 with a newer full synchro one.I have found a rebuilt 3 speed out of a 70 Maverick column shift type tranny(out of a 6 cylinder model).Does anyone know the measurement from the face of the transmission to the end of the input shaft on the stock original transmissions?Also the overall length of the transmission from front face to the end of the tailshaft  housing?Any input into my idea welcome.