im looking for a rear 4x4 driveshaft for a 4x4 conversion, i went to take some measurements and came up with something i didnt expect. my transfer case flange uses the 2.5" spaced bolt pattern and the axle has the 3" larger bolt pattern flange. is it possible to find a 4x4 shaft with the 2.5" on the transmission side and 3" on the axle side? it seems kinda wierd that there would be a smaller flange on the t case side, and larger on the axle. i figured it should be the same on both ends..