An NOS, in the original box sure grip differential with a part number of 3507446. This is a 2.76:1 ratio in a 489 case. There is surface rust on the casting areas, the ring gear has very minor surface rust (see picture #8), but the, pinion, yoke and sure grip are not rusty. It can be picked up.
The item "NOS MOPAR sure grip differential 2.761 gears 489 case 7290 Carlisle delivery" is in sale since Tuesday, June 11, 2019. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Transmission & Drivetrain".
The seller is "2doorpost" and is located in Flushing, New York. This item can't be shipped, the buyer must pick up the item.