What fluid do I use for the transmission for my 53 super c

[feleds]

I read somewhere that I could use ATF or 30 at oil. Not sure what痴 in it now but it痴 low

 

[Clint S]

80/140 gear oil for the trans. PTO is same reservoir as trans. 30wgt could be ran in hydraulics if you really wanted, but I run a hydro fluid in that. The thicker oil will quiet the gears a bit. ATF is WAY too thin. No need to use Hytran or equivalent on non T\A Tractors

 

[feleds]

Thankyou for your help. All I needed to know for now.