Hy-tran advice
 

I have a 1968 cub 104 with the 3 speed manual transmission. I would like to replace the rear end fluid with hy-tran and have a few questions:

1) Which hy- tran is correct to use in my 104? I have seen hy-tran ultra and hy tran plus advertised.

2) Is there any risk that hy tran ultra or hy tran plus could damage the rear end gears or seals? I have read that some modern lubrucants have additives such as zinc or detergents that can harm some softer metals or seals. I would imagine that today's hy tran ultra or plus is different than the original 1968 hy tran that came stock in my tractor, and I don't want to to use anything that could damage the rear end.

Thanksnfor your help and advice.

Good question. It will be interesting to hear the replies. :bigthink:

Hy-tran hasn't changed. It is still the recommended fluid for your transmission. Hy-tran ultra is the one you want. It won't damage anything in your trans.

I did not know that. I just assumed they would have changed over the years. Thanks J-Mech.

This should help you out..... HyTran

IH set it's own specifications for a lubricating oil, and them had a oil manufacture produce it. Viscosity Oil has been the sole producer of Hy-Tran for the past 40 + years, and continues with Case IH company today. Less oil related problems are experienced when the operator uses recommended lubricants in the IH Cub Cadet tractors.

Hy-Tran Ultraction is the zinc-free oil, but what you want is good old fashion Hy-Tran. You should never use ATF, or olive oil in your tractor, { I've heard it all }. Also, look in the Tec section and locate your tractor model service manual. In it, will tell you to use Hy-Tran, and how much is needed to fill the system.

I have seen even gear oil for hydro fluid man it did not work wel

Is the good old fashion hy tran still available, and if so, which one is it ("plus" vs. "ultra")? I have a regular transmission, and not a hydrostatic transmission. Does this make difference? Also, does anyone use the cub cadet "hydraulic transmission fluid" in their manual transmission cub garden tractor, and is this an acceptable alternative or is it only for the new mtd type cubs?

I take that back, Hy-Tran Ultra is short for Hy-Tran Ultraction, which is the updated grade and will work just fine in your gear drive 104. For some reason I was thinking there were different grades of the fluid. I happen to have two un-open gallons of the fluid labeled Hy-Tran { which I will use }, and caused a acceptable confusion. This new fluid has the highest level of water tolerance in the industry, and is zinc free. The fluid was updated as new metals, and other materials are used in today's tractors, and is actually greatly improved { absorbing up to 3-4% it's volume in water } over the old fashion stuff.

rear cover gasket part #..........350837R3.


There are folks who use other fluids in their equipment, and that's fine. But when you ask a question here at OCC, I try to give only book-text answers to questions I'm capable of answering. Nothing is best for your IH Cub Cadet 104 than Hy-Tran. See your local Case/IH, or Cub Cadet dealer and see what they send you home with! That's the best Hy-Tran advice you can ask for.

I agree with John! Hy-tran is the best fluid. If you can't afford it, or don't have it readily available, I would suggest a hydraulic/transmission fluid from a nearby TSC or similar store. Even local parts stores can get it if they don't keep it. Something for a tractor transmission. I wouldn't suggest ATF in your gear drive. It will work fine, but something with a little more weight would be better. I have used ATF in a cub trans that was leaking bad, and I didn't want to put high dollar stuff in it just to watch it run out. No ill effects. I just would use something else in a gear drive. :beerchug: