Comanchekid203

Hey everyone ! New member here , on my second Comanche now ( 89 4.0 4wd auto) I’ve already done plugs, wires , cap and rotor , oil filter housing seals , new oil pan with gasket , new valve cover gasket , tranny service and new tranny lines . Next on the list is flushing diffs and t case , I’m used to the Dana 30s , but the rear end in this truck is a Dana 44 , and I’m honestly not sure what type of fluid to put in it , anyone else have a Dana 44 with some knowledge of this ? Thank you !