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I just took out my third member to rebuild the posi unit.I bought the car with this already in it so I don't know what rebuild kit to buy. The only numbers on the trac-loc/limited slip are A C2AW4206 9DIF. the numbers/letters are in three different areas, not all together.the unit is all enclosed and looking through where the axle shafts go there's a moly pin going through it.I don't know who makes it. So any help is greatly appreciated!
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Looks like the carrier numbers. Upon looking in my Dearborn Classics catalog I see that the difference is only specified by 9inch and 8inch. So apparently they're all the same with respect to size. Best of Luck
Ford only made two kinds of Posi's back then. they both had a "L" between the ratio number on the rear end tag, Like 3L50. They were Detriot locker and a clutch type unit.
The detriot locker had a "N" in the cast iron case just above the pinion gear. It stood for Nodular Iron.
How to rebuild one?, I would say, put it together, that would be the rebuild. If its a clutch type , no big deal, If its a detroit locker, take it out and sell it and get a clutch type and lots of beer money also.
Hi on your carrier, around one of the bolts should be a tag,on this tag
you will be able to see the ratio and if its a traction lock axle. I will
put in a page in my gallery, it shows all the different axels.