I would double check the torque on all the bolts, but to me it sounds like a part of your draglink is loose. Those busings work well for the flip, but if the hole is too big, it will seem tight but still be loose. I did the synergy one which is meant for a 7/8 hole, but only works with their drag link due to it being a slightly smaller rod end. I thought it was good, till I got the new knuckle ($44) and did the correct 13/64 or whatever they hole should be. I noticed a huge difference over just doing that. I would also check the end connected to the pitman arm, as it seems there is a lot of grease coming out from the boot?