The sheaves on my '86 h34 deck organizers are crumbling due to uv damage. I measured the sheaves and ordered some delrin replacements. Trouble is, I can't get the old sheaves out of the frame. I pulled the organizer off the deck and attempted to drive the bushing out of the frame but no joy. Has anyone either replaced the sheaves or found a direct replacement for the whole unit. The hole spacing between the sheaves (bolt centers) is 2 1/4".