My dishwasher has long fill and drain lines so there was no need to disconnect them. Pulled the dishwasher out about half way, removed the end cap to the upper tray; removed the two bolts holding the wheel assembly to the dishwaster tub; slid the broken assembly out and new assembly in; tightened down the two bolts; slid the dishwasher back into place and it was all over in under 15 minutes. The hardest part of this job was removing the end caps from the rail.