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  #21  
Old 06-24-2019, 02:17 PM
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Originally Posted by moe1942 View Post
The old Cub has a conventional tranny..Just uses old school tranny oil... I need something to put in the touch control unit for the hydraulics...All it does is raise the mid mount mower and the half ass three point. I'm trying to sell this thing and want to go with something cheaper than hy tran....


Ok, to get more info, by conventional tranny, you mean a manual shift transmission, and not a hydrostatic transmission?

I remember having a cub cadet when I was a kid, that was hydrostatic drive transmission. My dad made me drive 40 miles to the cub dealer to get their “hydrostatic oil” that they recommended.




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  #22  
Old 06-24-2019, 03:34 PM
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Not to completely highjack the thread but why did Cat and Allis Chalmers use diesel fuel in their torque converters instead of some kind of oil?
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  #23  
Old 06-24-2019, 08:15 PM
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Not to completely highjack the thread but why did Cat and Allis Chalmers use diesel fuel in their torque converters instead of some kind of oil?
I have never heard of that...
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  #24  
Old 06-24-2019, 08:55 PM
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Maybe more OT than ORF or maybe less OT...

While on the subject of tranny oils, VW and BMW (and others) use an "automatic" transmission called a "DSG", Direkt-Schalt-Getriebe or "Direct Shift Gearbox".

Earlier styles use a pair of wet clutch packs similar to automatic transmission stacked clutch packs. Later styles use a pair of dry disks more similar to a manual transmission car. The clutches are where the manual clutch would be and driven off the flywheel. Each of the pair of clutches is hooked to one or the other input shaft for odd gears (1-3-5) or even gears (2-4-6). Both operate on the principle of "pre-loading" the next or lower gear (kickdown). Both gearboxes are similar to a manual transmission car. There is no clutch pedal or torque converter. The dry clutch DSG is usually a 7-speed. All the hydraulics and shift-fork movement, etc. are controlled by a "mechatronic" unit.

As far as I can tell, both styles use the same fluid. If you bought OEM VW fluid, it will set you back $30/qt (liter). VW specs 6 liters or so for a fluid change! Every 40k miles! Other brands are less expensive but still close to $20/qt and most are produced in Germany as is the OEM. Referring to the pic below, the fluid is listed as 75W. In FWD cars, the differential is also in the fluid.

What secret sauce is in this fluid that makes it so expensive?

PS: make sure no youngun's are in the room if you do a search of "tranny oils". I would recommend using the search terms "transmission fluid"...
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Last edited by mccutter; 06-25-2019 at 01:26 AM.
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  #25  
Old 06-25-2019, 12:11 AM
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Red I think it had more to do with the continued replacement of the diesel over possible contaminated fluid .
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  #26  
Old 06-25-2019, 09:06 AM
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Quote:
Originally Posted by Shade Tree Welder View Post
I have never heard of that...
HD-19, first model with a torque, and a screaming deetroit 6-71.
Next model had a Buda with a conventional torque.
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  #27  
Old 06-25-2019, 10:25 AM
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In the '50s some of the old Cat D8s with straight 8 engine had a gearbox with a clutch and a diesel torque. They could outpush the standard gearjammer. I think it was a experiment to see if it would sell.

http://www.acmoc.org/bb/showthread.p...rque-converter
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  #28  
Old 06-25-2019, 10:43 AM
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Quote:
Originally Posted by toprecycler View Post
Ok, to get more info, by conventional tranny, you mean a manual shift transmission, and not a hydrostatic transmission?

I remember having a cub cadet when I was a kid, that was hydrostatic drive transmission. My dad made me drive 40 miles to the cub dealer to get their “hydrostatic oil” that they recommended.


Yes it's manual tranny..

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Yes it's manual tranny..
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  #29  
Old 06-25-2019, 10:45 AM
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Quote:
Originally Posted by Shade Tree Welder View Post
That information would have been helpful in the first post...

Yes get any Ag Hydraulic oil, you'll be good.
I was waiting for that.....
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  #30  
Old 06-25-2019, 10:51 AM
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Quote:
Originally Posted by moe1942 View Post
I was waiting for that.....
Your title and post lead me to believe you were looking at a Trans/Hydraulic
Fluid so I ran with it. You got what you asked for until you asked the right
question then you got your answer to that.

Damn Chair Force...
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