Trans fluid/level question, 48 cub

[DZG300]

Where should the level be visually through the top fill hole?

And it takes 90wt right? I was reading some guys said they were running the 90 wt mineral oil TSC sells? Anyone confirm? I got a bunch of that left over from filling up my 9N

 

[grandpa Love]

Drain the transmission...then fill with 3.5 pints of 80/90 or 85/140 gear oil. The "full to here" plug is a small pipe plug on the left side of the transmission,sorta behind the brake rod. BUT....if you haven't drained it lately,drain it. Condensation builds up fast in a cub transmission. ( The thicker the gear oil the happier a Cub is)

 

[grandpa Love]

Where should the level be visually through the top fill hole?

And it takes 90wt right? I was reading some guys said they were running the 90 wt mineral oil TSC sells? Anyone confirm? I got a bunch of that left over from filling up my 9N

I personally wouldn't use the left over 9n fluid in any of my Cubs

 

[DZG300]

I personally wouldn't use the left over 9n fluid in any of my Cubs

Good to know

Drain the transmission...then fill with 3.5 pints of 80/90 or 85/140 gear oil. The "full to here" plug is a small pipe plug on the left side of the transmission,sorta behind the brake rod. BUT....if you haven't drained it lately,drain it. Condensation builds up fast in a cub transmission. ( The thicker the gear oil the happier a Cub is)

I drained it once many years ago. But ill drain it again. I couldnt remember what fluid i used.

 

[caterpillar guy]

85-140 is fine for down south in the winter but northern climates it would like more of an80/90 or even if you want to spend the money a75/90 synthetic oil. Not sure what the price difference4 is anymore. Been a few years since I bought any synthetic oils. I'm not sure but don't the wheel drives each have a separate reservoir for each wheel end? So you would need a bit more than the 3-4 pints. You could also probably run hytran in it but if the seals leak or seep now they will probably leak more and faster with hytran in there.

 

[grandpa Love]

85-140 is fine for down south in the winter but northern climates it would like more of an80/90 or even if you want to spend the money a75/90 synthetic oil. Not sure what the price difference4 is anymore. Been a few years since I bought any synthetic oils. I'm not sure but don't the wheel drives each have a separate reservoir for each wheel end? So you would need a bit more than the 3-4 pints. You could also probably run hytran in it but if the seals leak or seep now they will probably leak more and faster with hytran in there.

Yes. Final drives are each separate. But.... having removed dozens of those pans we rarely find watery oil in them ( I guess because the ain't cast they don't sweat??) we usually just pump a little fresh oil in on top....thick is good in there

 

[560Dennis]

Tractors operating in temperatures below +40 degrees F., IH Hytran fluid or SAE-80 gear lubricant. Tractors operating consistently above +40 degrees F., IH Hytran fluid or SAE-90 gear lubricant.

you can get sae 90 weight at tractor supply or napa , stay With a gl1 rated

 

[BarnyardEngineering]

I personally wouldn't use the left over 9n fluid in any of my Cubs

If by "left over" you mean the old oil that was drained from the 9N, I agree.

However, if it is fresh new oil in a bucket that says "gear lube" there is nothing 9N specific about it.

 

[BarnyardEngineering]

The Cub has a basic "rock crusher" style gearbox. Oil type is not critical. Just has to be... oily.

My understanding is there is no "yellow metal" in a Cub transmission, so getting "safe" oil is not necessary.

 

[Jim Becker]

My understanding is there is no "yellow metal" in a Cub transmission, so getting "safe" oil is not necessary.

Bushing in reverse idler gear. Better to stick with GL-4 that is not also listed GL-5, or use Hy-Tran equivalent.

 

[DZG300]

If by "left over" you mean the old oil that was drained from the 9N, I agree.

However, if it is fresh new oil in a bucket that says "gear lube" there is nothing 9N specific about it.

No not used oil lol.

Its that 90wt mineral oil that TSC sells thats labeled for Ford tractors or whatever.

 

[dhermesc]

Yes. Final drives are each separate. But.... having removed dozens of those pans we rarely find watery oil in them ( I guess because the ain't cast they don't sweat??) we usually just pump a little fresh oil in on top....thick is good in there

Mine are not leaking and I am sure they have at least some of the original 72 year old oil - have you ever tried pumping the final drive out to get more "new" oil in them?

 

[grandpa Love]

Mine are not leaking and I am sure they have at least some of the original 72 year old oil - have you ever tried pumping the final drive out to get more "new" oil in them?

Nope. We just add as much fresh as needed

 

[RTR]

Drain the transmission...then fill with 3.5 pints of 80/90 or 85/140 gear oil. The "full to here" plug is a small pipe plug on the left side of the transmission,sorta behind the brake rod. BUT....if you haven't drained it lately,drain it. Condensation builds up fast in a cub transmission. ( The thicker the gear oil the happier a Cub is)

what he said!