What was the model of the Enduro bearing? I have Enduro F6902 max bearings installed in the top link and it seemed to go together fine, the issue I have is that they seem a little tight on the main lower frame pivot, I'd assumed that there might be some debris/paint in the recess so the bearings won't completely fit in.
I have Enduro F6902-LLU-MAX-EA, but there are other variants
I bought the same bearings, and the flange was too thick. It did go in the top link fine, but once I assembled it to the frame there was a gap, so the rocker would move side to side. Have you assembled it back together with the frame, and does it fit tight?
I did not try the lower pivot, but because the flange is thicker I expect it won't go in completely (as you seem to have found).