Oliver 70 oil fluid capacities

I grew up on an IH farm & still farm with red tractors and have several older IH tractors that I have collected but had an uncle that farmed with Olivers so have always had an interest in them. I bought my first Oliver today, a 1948 RC 70. I'm getting ready to change all the fluids in it & would like to know what oils is used in the rear end & tranny and what are the capacities. Also, what is the capacity of the engine oil pan & what oil is recomended for it. I see it has an oil bath air cleaner so would presume it uses the same oil type as the engine.

Another question, orignally was this tractor neg. or positive ground? It didn't have a battery in it when I got it. PO said it was neg grd but according to the clamps on the battery cables it appears to have been pos. grd but when I hooked a battery up that way the starter started to get hot. Switched the cables to neg grd & it was fine.

Float, or needle valve sticks & it needs a new main wiring harness. Has several oil leaks but otherwise runs like a top though doesn't seem to have a wide range of rpms.

Where's the best place to buy parts? I'm sure I'll have more questions as I get farther into it

TIA,
soybeanjoe.

Sorry for the typo, it's a 77 not a 70

My dad had two 77's one with a loader on it,both gas tractors. He ran Riley Brothers 30 wt non detergent in the spring, summer and fall on one. and 10 wt non detergent in the winter on the loader tractor.The other 77 was not used in the winter so it had 30 wt in it year around.He hauled manure in the winter with his 88 and it got the same oil treatment as the 77 with the loader on it.His little Ford 9N with a loader on ran 20 wt non detergent year round. Non detergent Riley Bro's oil is all that was ever used up to about 1975 and then a switch was made to Cenpeco oils and grease.Why I can't remember.A oil company peddler delivered oil in 55 gal drums,Grease etc and sold shovels for the barn and brooms etc. at the same time.

Transmission & final drive take 80-90 gear oil in this day & age. Get a 5 gallon pail as capacity is 19 quart. You have one fill plug and 2 drain plugs. The gear case for the PTO also takes the same oil so save a little of that 5 gallon pail for that. It should be positive ground if it still has a generator.Engine oil capacity don't remeber for sure, put about 6 quart in and check the dipstick and see where you are at.On the carburetor, you can have several different ones so double check and see how the tractor is equipped. A M-S is the most common. High idle no load RPM should be 1750. Different people buy parts different places and certain parts one place and other parts at other places. I am not going to tell you where & how to spend your money.

5 quarts of oil in crankcase. Call Korves for all your needs.
Korves Oliver

Thanks, Korves was the place I was looking for.

You would have one of the first 240 77 Row Crops made if it is actually a 1948 model.

Tractor's serial # is 320229 which if I understand right would make it a '48 as the last '48 was 320240 unless I'm mistaken

Those tractors all had a smaller bore when they were built as well.

Are you sure on the 19 qts? I drained out about 21 gal so unless it had been overfilled..... Luckily I had a 2nd 5 gal bucket handy when I was draining it or would have had a mess.

Meant 21 qts, not gal. My bad.