Thank you for the reply and the info. The list of what ratio came in what vehicle will be helpful looking for a donor. I did go to Stovebolt's Tech tips and looked at let Tom grade your driveline and that suggest a 3.76 1st gear with the .73 OD. From the list of ratio's you supplied there are about four different S 10' that came with that ratio. Also a couple Astro Vans although I don't know if the shifter position would be correct for the bench seat in my 47.