Walter P Houston , TX October 23, 2017 Appliance: General Electric Electric Range JBP64WB4WW Ge Range Jbp64wb4ww: Cracked inside window. How to replace Seal Window Pack. Make sure you have the correct tools and it will be a quick fix. One person can do it. Only issue was putting back the door. Make sure the hindges are out fully. I took a little longer not knowing what to expect. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes