Farmall H trans rear end fluid change

There are two drain plugs, one under the PTO and one under the countershaft. I have 80-90 in mine, many use 85-140. Capacity is 6 gallons, and there may be a lot of water in the oil, so make sure you have at least a couple of buckets to drain into.
Zach
 
I put just regular 80-90 in mine but i first put in a gallon of lucas oil aditive. It makes things much quieter and it even stopped a seaping pto seal. Good stuff.
 

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