I know this is an old subject but on a remodel I'm doing a old 50a 2 wire with wrapped ground was run. And the usual 3 wire with ground was run as a splice to extend the range to another location. The range is brand new with a 3 wire with ground whip coming off it. Back at the splice the only option is to tie the neutral and ground together. But still doesn't make sense. I've heard some new range ovens say you can tie them together. Same with dryers. Any clear solutions at the splice extension spot?