Ford 1900 - Parts Number Help

[MichaelandLink]

Hey guys, had an unfortunate mishap on Friday, so need a new transmission full cap with dipstick and would like to change to detention balls while I am at it.
Could anybody help out with a part number for the filler cap and decent balls?
thanks in advance!

Michael

 

[BenL]

SBA398400361

 

[BenL]

I believe part #23 is what you’re referring to