2014 Silverado 1500 High Country - Transfer Case Adapter Seals?

[ZombieK5]

I am putting my transfer case back in our 2014 High Country.

I have the seal that goes between the Transfer Case and the Adapter.

IS THERE A SEAL that goes between the transmission and the adapter???

I'd hate to use only RTV if there is a gasket made for this purpose.

Any advice or part numbers is welcome!!