Mshred, I modified my auto trans mount bracket and I used a stock ford transmission mount for a mustang. they make a tall mount and a short mount. I used the tall mount i think from a 67 stang. as far as the gear for the speedo goes it depends on your tire diameter. i just bought a 3.91 sure grip for my dart so i have to change my gear. the gear calculator that i found on line tells me a need a 22 tooth gear. they only make a 21 tooth and a 23 tooth. I think I'm going to try the 21 tooth. The speedo cable i used is a little long. I actually had to wrap it in a loop under the dash to make it work. if it doesn't last i will get a custom one made .
try this website for calucations:
http://www.tciauto.com/Products/TechInfo/speedo_gears.asp
