I can't get my front driveshaft to angle down far enough off the dana 20 transfer case to bolt the driveshaft my dana 44. I'm using a c-4 mated to the Dana20. from yoke to yoke it measures 23" I've grinded on the sides on the Dana 20 yoke and gained a little more angle, and I've went to a single u-joint over the two and gained even more angle. now the driveshaft will bolt up, but I'm afraid as the axle moves down even more under flex that the driveshaft will limit my down travel, and/break the shaft or yokes. any suggestions??