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1973 416 Doka, 1978 416 Doka, 1980 416 Doka..... Help me, I can't stop buying them!!!
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Discussion Starter #1
If you have had any of the covers off of your tranny, you should be able to figure it out! But it could take you awhile! Lets see who gets it right first!
 

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78 406
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251 Posts
OK Von, if i am right what is the prize? A new gear reduction starter? My guess is that it is only a 4 speed, not a 6 speed . It is missing the lower 2 gears.
 

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85' U1300L Holset Turbo VA A/C, 66' Propane 404.1 rock mog, 1975 416 Doka, G500, Volvo C303
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how about a pic of a normal tranny for us 404 guys to play!!!!
 

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1973 416 Doka, 1978 416 Doka, 1980 416 Doka..... Help me, I can't stop buying them!!!
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2,616 Posts
Discussion Starter #4
how about a pic of a normal tranny for us 404 guys to play!!!!
That would just give it away! You can look inside of a 404 as well to see the difference!
 

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85' U1300L Holset Turbo VA A/C, 66' Propane 404.1 rock mog, 1975 416 Doka, G500, Volvo C303
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well, compared to a 404 its got beveled gears. And the gear in the bottom left looks to be locked out.

Can i assume this is a SEE tractor tranny

I meant helical, not sure where I got beveled
 

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'78 Mog 416.141 DoKa
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3,404 Posts
The last time we played "guess the issue", with the oily cylinder head, I don't recall you ever telling us the answer...

Pass ;)
 

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72 Haflinger: 75 Pinzgauer 2.7i, 94 & 96 350GDT
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406, 416 or 404 hmmm...
I know what is missing from this one...
Trans Oil!!:eek:wned:
What is my prize?
and oh ya - you never told the answer on your last 'guess' post
 

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1969 404.1, 1987 300SDL, 1999 C230K
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64 Posts
I've never looked inside a Unimog transmission, but I can't help but wonder what the helical gear beside the PTO gear is doing. It cannot mesh with the helical gear behind it, because it is cut at the wrong angle. Is it being used as just a spacer?

How would this transmission shift into reverse?
 

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BenzWorld UNIMOG statesman
Unimog 404.1 Diesel (sold :( )1995 LMTV 1078
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5,856 Posts
maybe it's an optical illusions buttt... to me.... It looks BROKE!

Bottom left gear seems to be sitting at a slight angle. The Gear face is NOT pallallel to the rest of the gears and its not perpendicular to the shaft it sits on.
 

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85' U1300L Holset Turbo VA A/C, 66' Propane 404.1 rock mog, 1975 416 Doka, G500, Volvo C303
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diesel canuk, if you look closer, those gears do not interface. There is a gear behind it that makes reverse.

Damn, the one item on a mog I havent worked on a gazillion times.
 

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1973 416 Doka, 1978 416 Doka, 1980 416 Doka..... Help me, I can't stop buying them!!!
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2,616 Posts
Discussion Starter #11
This is a rebuilt gov. surplus 16 speed SEE tranny. All of the other trannies that I have seen are straight cut gears not helical cut. Should shift better and be quieter. Just need to find some shift levers for it! Still holding out for some good used ones before biting the bullet and buying new!
 

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4Sale: 230G, U1200 Ag, 1017A, lots of MB cars, Volvo c303, 416 raildoka, LR D110 TDi
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Von,

There is no comparison in the shifting of the SEE 16 speed trans to any of the other 406/416 trannys. They shift so smooth that you almost forget that you are driving a mog, and the air shift splitter works like a dream for downshifting on hills and such.

Cheers,
Ben
 

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85' U1300L Holset Turbo VA A/C, 66' Propane 404.1 rock mog, 1975 416 Doka, G500, Volvo C303
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sweet, I guessed right what do I win.
 

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BenzWorld UNIMOG statesman
Unimog 404.1 Diesel (sold :( )1995 LMTV 1078
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5,856 Posts
ahhh then its not a tranny for a 416 or 406 and that is the question you asked. SEE is a 419 or something like that.
 

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1973 416 Doka, 1978 416 Doka, 1980 416 Doka..... Help me, I can't stop buying them!!!
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2,616 Posts
Discussion Starter #15
ahhh then its not a tranny for a 416 or 406 and that is the question you asked. SEE is a 419 or something like that.
Side of tranny has a 406 part # cast right into the side of the case! And air shift trannys were used in the late 80's, early 90's in the 406-416's.
 

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BenzWorld UNIMOG statesman
Unimog 404.1 Diesel (sold :( )1995 LMTV 1078
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Side of tranny has a 406 part # cast right into the side of the case! And air shift trannys were used in the late 80's, early 90's in the 406-416's.
Sweet, learn something new everyday.
 

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If you have had any of the covers off of your tranny, you should be able to figure it out! But it could take you awhile! Lets see who gets it right first!

Let's see, that is a UG 2/30 transmission, as used in the U417, U418 and various other models. It is a great transmission and the culmination of many of the improvements that were made to the UG 2/27 transmission series found in the U406/U416, etc.

Now, for my best imitation of Trucktor / John, here are a few photos.............


-Sean Philyaw
 

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Side of tranny has a 406 part # cast right into the side of the case!

Despite what's on the case, it's not a 406 gearbox. The same or a similar case was used for economies of scale during production(which implies that using the same case for all non-SBU transmissions meant lower production costs), but as you can see, the internals are totally different.

BTW, the UG 2/30 transmission could be had with both straight cut and helical cut gears, depending up the transmission model.

The UG 2/27 transmission used straight cut gears.

This is one of those times when you can refer to the Technical Data Handbook to see the exact differences between the two. It can be a daunting task to keep up with these types of details. Jack Russell did it better than anyone I know, but hey, who wouldn't know their stuff after working with UNIMOGs for over 30 years. I learn new UNIMOG minutiae daily and I'm just glad that the technical data handbook is still published.

-Sean Philyaw
 
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