Lani V Joplin , MO April 20, 2020 Appliance: Whirlpool Washer GHW9400PL1 Whirlpool Washer Ghw9400pl1: Bad drive pulley and belt on my whirlpool front loader. How to replace Drive Pulley. Replaced pulley and belt with directions from Appliance Parts Pros YouTube video. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes