Had to take the back cover off. It was very tight to remove the fan that sat in the drip pan but did get it off, was able to apply the same level of cursing and got the new pan installed, installing the drain tube was a breeze. Found the parts price very reasonable. Hoping the Whirlpool redesigned the pan so I won't have to do it ever again. I was surprised at how bad the quality of their original part was. Probably saved myself $150.00 on buying the part and doing it myself