41-79 Jeep Output Shaft Sliding Gear 809290 NOS Dana 20 Dana 18 CJ MB Wagoneer J Series
NOS output shaft sliding gear for Dana 20 and Dana 18 transfer cases. This is a new part, but box has been sitting in storage and shows signs of wear. Part number is 809290.
There are a ton of fitments, so it's easier for me to share Crown's list: