Easy enough... Add the following link (can't put the whole link since I have fewer than 10 posts)
avsim.com/pages/0308/C130X/ace%20fuel%20loader%20with%20external%20tanks.jpg

I checked my currect C-130 ACE and fuel is not an option in the preflight section, but this picture accurately describes the tank name and location.
Though almost all C-130H's were delivered with external tanks (under the wing), very few J's were delivered with them. there simply wasn't the need as the engines were more efficient and could carry out the same range as an H withou the additional 18k of fuel.