Yes a lot of nice parts but sometimes you got to wonder. Here is a listing under nos and rare parts 67 12 bolt posi.
"Camaro 12 bolt 3.73 OL positraction rearend assembly or rear axle assembly. Casted on A-5-7 and production date stamping OL0119G2. Mono-leaf spring perches. Unit is completely rebuilt and ready for installation. Rebuild includes rebuilt posi, new axle shafts, new carrier bearings, pinion bearings and seal, axle bearings and seals, crush sleeve, gasket and hardware. Complete from backing plate to backing plate. No brake shoes or rear brake hardware"
So no OL rears listed here are crg so must mean QL but a QL is 3:31 non posi. $3295.00