3 wire or 4 wire kit? I checked and the existing outlet is for 3 wire. If ordering new range with free installation, the default for the mandatory kit is for 4 wire. Can I just switch out the kit for the 3 wire version and still get free installation?

Hi, Busterdad! Thank you for this inquiry and for reaching out. Yes, 3-Wire Power Cord Connection (existing installations only) can be an option. Please check out page 6, figure 15 of the installation instruction manual for the steps:  https://pdf.lowes.com/productdocuments/d3d00248-143f-4b9b-a4f8-b4179da89af9/61337854.pdf?_gl=1*z7vgt*_gcl_au*MTM4NjA2OTE3Mi4xNzI5Mjg2NTcz Additionally, a power supply cord with a 3-prong grounding plug can be used. Please reach out to your local retailer regarding their free installation on the purchase. ~Juan