Unfortunately it's not the same ring gear, even though same number of teeth. The gear on the starter drive is different too. Has one more or one less teeth. The H six ring gear is as rare as hen's teeth, but there is a guy in Wisconsin I think that sells only ring gears. Name is Al Suering, he has a website. He has the rare ones made for him when there is demand. I think it was about 125.00. I had to wait six months, but one day he called and had gotten a new batch. Haven't installed it yet as other projects in the way. He may have some of that batch left.