Pro Stock John

iTrader: (34)

Since you guys know lockers, what could you tell me about this one? I recall buying it 10 years, for 31 spline. I'm trying to de-clutter. I know the other one is a 31 spine spool also for a 9":












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S10xGN

iTrader: (11)

Factory 4-pin traction lock. Before selling it, you might want to pull it apart and see if there's "daylight" showing between the ring gear bolt bosses and the clutch tab pockets. If so, it's pretty much a paperweight. Mine was and I ended up tossing it out and going with a billet unit from QP.

Pro Stock John

iTrader: (34)

Thanks Russ, 'factory 4-pin traction lock.' like for what?

S10xGN

iTrader: (11)

Well... That's the Ford version of a "posi". Ford 9's had an "Equalok" until the early 70's, then Tracklok from then thru '86 when it the 9" was discontinued. Being a 4-pin is good, but only if the case isn't overbored. Scroll almost to the bottom here to see what a case looks like when it comes apart.