Well after taking the transmission back out and tearing it back down, I realized where I messed up. I had the sprag gear backwards, the sprag assembly was rotating clockwise instead of counterclockwise. Got everything put back together and back in the truck. My luck, another issue has come up. Now when it hits 4500 rpms or so, it all of a sudden jumps out of gear like I revved it up in neutral.
It does it when it's in D, but shifting manually it holds the gear like it supposed to. I wonder what would cause this, if anyone has any inputs, please say so!