I'm confused on what direction I want to move the axle. I could be wrong, but it appears that the axle needs to be moved forward enough to allow the springs to slot into the center hole on the axle mount. If I do need to drill another hole, would that be on the back side of the axle mount?
Here is a view of the current pinion angle and the amount of the drive shaft tail piece that is already sticking out of the transmission. Th angle at the diff is 5 degree and 6 degrees at the transmission.