I am plugging in a fixed yoke 205 to replace my current 203. I have a 14b FF rear installed from a 3/4 ton truck. I need to replace my rear driveshaft. Is there a donor shaft out there to accomplish this without having to have one built? Ofcourse my shaft is way to short to get-ir-done. At rest my rear shaft would be about 43" long The 203 is 23" and the 205 is 15" app.