So I am making time to work on my project 36 Ford truck. Couple hours in the evenings after family stuffs over and whenever I have extra time on the weekend. When I bought the truck the po had set the drivetrain from a 1987 Lincoln MarkVII LSC in the frame and thats about how far it got. After putting the body together I figured out that the rear axle is really about 3" to wide to get the tire and wheels to fit in the back fenders. He had the LSC wheels on the back that are offset and if you put a more typical wheel on it they are past the edge of the fender. So after looking around I have decided on a Explorer rear axle. The LSC had the 200hp 5.0 roller motor in it that year with a 3.27 rear gear ratio. My plans are not to do much with the engine at this time so no big horsepower increases. I was reading some where that a better gear ratio is a good way to make a low horsepower vehicle a little peppier. The Explorer seems to have to standard ratios, 3.55 or 3.73 with the 3.73 being limited slip in most cases. Right now I have things mocked up with a 29" tall tire on the back. I am leaning towards finding a limited slip with the 3.73 ratio but the 3.55 seem to be easier to find. So with that is there any big advantage to one ratio over the other?