I chose the Granada rearend because I did a lot of research on the 8 and 9 rearend and found the Granada is exactly the same measurement from inside backing plate to backing plate 50.5 inches. Of course I measured it myself to verify. It should be a perfect fit unless I'm missing something. I plugged in the 4.10 ratio on the calculator Henry recommended and it looks like that might be too much. With the price of fuel, I want a reasonable MPG since I'm not building this one to drag race. I have my eye on a 30 pickup for my next project and its going to be more radical and I'll use my 9" and probably the lower ratio for that rod. Ya'll have helped me a lot with this in just a few minutes and I've put both websites in my favorites list. If you have any other points of interest you would like to share, please feel free to suggest away!

How does you rod perform with that 4.10?