Lowe’s had the 5 gallon measured bucket.
Home Depot had a 10qt/2.5 gallon bucket.
I say had because who knows when they’ll change stock.
The stock Allison pan holds approx 7.5 qts on a normal drain and re-fill.
The deep Allison pan is around 9.5 qts on a normal drain and re-fill.
Most will always ask how much fluid,
, this depends on how you go about this.
Measuring what you remove saves a lot of guessing on how much to put back in.
Then check the level when your all done.
I’ve found having the level when operating temps in the middle of the high and low hot hash marks.
Some like the level just above the low level hot hash mark.
The front tires on 6” blocks
Good luck and Have fun