1961-63 Buick Special & Skylark Transmission Pan Seal for the DualPath transmission. This transmission can be easily identified since it has the only transmission pan held in place by one bolt located in the center of the pan. It is not for the 1961-1963 Olds F85 RotoHydramatic Transmissions. It is a rubber seal, not a gasket, see its picture, it is NORS manufactured or/and sold by Republic, their P/N ATD-4856, OEM number 1194590.
If you require more DualPath seals see my eBay item number 134118622984, a 1961-63 Buick Special front seal kit, rear seal and pan seal kit. This kit is shown in the 2nd picture.

I ship this item via USPS 1st Class Mail Parcel Service to any location that has a US zip code, this includes Alaska, Hawaii, Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands and also any APO or FPO address. For an additional charge you can chose to have it shipped USPS Priority Mail instead. Either shipping method comes with insurance and full US free tracking and you will receive this tracking number which you can then track your order if needed. If USPS shows your package is not delivered you will receive either a full refund or I will immediately ship you an identical replacement part. I will also ship anywhere in the World via the US Postal Service except India. I will only ship to India via FedEx due to extreme problems with shipping via USPS.

The cut off date for Monday through Saturday shipping is 9:30 AM, Eastern Time. I personally operate by myself 7 days a week, 52 weeks a year and ship 6 days a week. Since USPS ships and moves product 7 days a week, the majority of domestic customers will receive their order via 1st Class Mail in 3-4 days and via Priority Mail in 2-3 days, rarely 5-7 days after PayPal payment, no matter what day it was paid for.

I have been selling new automatic transmission parts exclusively for vintage cars, 1946 to the mid 60's for over 45 years now, starting in 1977.  During this time I have accumulated over 20 tons of misc. mechanical car parts from the early 30's to the 70's. I am now starting to offer these parts for sale.