Well I went back and sucked out the seafoam mixture and decided to refill with more seafoam just to thoroughly clean it. Seemed good for a bit, but when I let it sit, the wheel was notch again. I let round 2 sit overnight, then flushed it with 4 qts of mercron 5 and then ran 2 qts of Amsoil ATF into it. I know the pump is flushed and clean.
Not wanting to take chances, I sprayed the upper and lower u-joints with liquid wrench before flushing the system. When I was done, I sprayed them both with Amsoil Heavy Duty metal protector. Went for a test ride and everything seems great.
Can't say what the real issue was as I did the flush and u-joint cleaning at the same time, but I am betting more on u-joints due to the stiffness and notchieness coming back after sitting. The flush didn't hurt as the fluid was pretty dark so I should be good for good while.
Hope this helps someone in the future...now on to new COPS and fuel filter.