9" ford rear end question

i recently purchased a 74' duster with a narrowed 9" ford. With the rear tires off the ground and I turn one wheel should the opposite wheel spin in the other direction even with limited slip? It feels as if the axles are locked together and they both rotate in the same direction. I'm wondering if it has a locker or spool. Seems to go down the road fine. Just trying to figure out what's in there. From counting the drive shaft rotation it seems to have around 4:86 gears.