Are the front and rear differential propellor shart companion flanges interchangable? I rebuilt two 3rd members (Both ARB Full Floaters, did not replace Ring and pinion), and after installing 3rd members and axles, I realized that I swapped the Front 3rd member to the rear and visa-verce.... Was in process of installing drive shafts when it all became very clear... The front shaft has a smaller u-joint flange than the rear... This should be as simple as reversing the flanges on the 3rd members, or am I missing something... I have seen somewhere on the web about making plates to allow for the different sizes to mate.... is this practical and now that I have scr*wed up, is this something to consider?