looks like the id tag hanging there still on the center section, get the # off of it and someone can help. Cole
good luck!With its rugged semi-floating axles, the ever-durable Ford 9-inch hypoid differential came with several different gear ratios depending upon the engine choice. With the straight-six/Ford-O-Matic combo, the gear ratio is 3.22:1, the 3-speed manual had a 3.89:1 ratio, and the 3-speed with overdrive used a 4.11:1 ratio.
Not a 9 inch! There is no pinion support.fast68 said:sure looks like a common 9" to me
perfectly round shape and all.
why is it not a 9" ?
looks identical to the ones stuck under our 69 fairlane 4 link and the 54 ford pickup also.
57 fairlane 9" 3.22 ratio:
Thanks sor the help thus far....I'll take a look and see if I can locate any more numbers this evening.prostreet6t9 said:Some of the 1949 to 1956 Ford full size came with the Spicer 41 But I've run across some odd ball's that where not the 41.
Look on your third member and see if you can read any numbers. I have a housing here at work and the case numbers are:
WAD4025A : Located in between the third member mounting bolt holes top passenger side.
6-52: Located in between the top 2 web's on the drivers side of the third member housing. Mine also has a small tag with no model ID but with 3.78 ratio marked. This one turned out to be a real odd ball diff.