1960-63 GOOD USED 327 Differential, PG automatic:  gear ratio 327. If you need more details about this unit, you can call me 7 days a week, at 918-753-2486. Note: does not include top cover gasket, nor new side seals, nor input shaft seals or speedometer gear, those items are sold separately. You will get an item similar to the one in the photo, in good condition.