I have a 1934 1 1/2 ton truck the tail-shaft has a (grease nipple/oil nipple) located half way along this shaft there is no point for the oil to flow out of there other the join to go up to the gearbox,
my question is how much transmission fluid do i put in there the lubrication chart tells me it is S A E 160 oil but nothing gives me the quantity that needs to go into this shaft any advice on how much.