Just got my urethane shackle bushings for the 74 Duster.Having a [censored] of a time getting them in the upper mount,in the past rubber ones i did not have as much of a problim.Also when i tried to slide the shackle into the urethane had to beat to get it in,am i doing something wrong,or is it that much of a tight fit.I have used grease to help but that had very little help.Thoughts.