Dana 60 5x4.5 full floater?

More than 1/2 the time I try to buy a part they
are on backorder. Last month I tried to order gears
from Summit and Jegs. They said they were available
in a short time and both time they refunded my Credit Card
the next day and said not available at this time. They said they
would inform me when they had a date = Nothing so Far!