The engine year/size isn't really relevent to the oil capacity. It is the pan that makes the difference. But yes, a stock bronco pan holds 6 quarts with a new filter (and the engine run to fill the filter).
I sent it away when I sold the Ranger (was in the paperwork somewhere), but I once found the oil level height below the pan rail for a 302. With this you can have any size or shape of oil pan but still get the level correct.This will let you set the correct oil level, not based on volume.