it was the old (gross rating) way until 1972. now everything is rated sae which is with all accessories on and at the back of the trans. most companies won't give a different rating for auto and manual though.

 

I dont know where your checking but that is way outdated, in the early 70s they switched to SAE testing, which required all accessories as would be manufactured. Previously even the water pump would be removed when dyno testing, that is long gone 30 years past.