Brownie box. Can anyone tell by looking at this if it’s the box with overdrive? No data tag.

[MattOzark]

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[Clb]

Count the revolution's per turn of input vs output- per 1 turn of input.... -1 is an od
+1 is an underdrive (lower gear)

 

[GOOSE]

Sure looks like it. No placards? Possibly s 6000 series unit. You should be able to push and pull the selectors to get different ratios.

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[MattOzark]

I’m not where I can physically look at this. It’s online and no there is no data tag. I’m gonna see if the guy will check and see if it’s an overdrive. I didn’t know if there were different gear options on them.


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[GOOSE]

I have a 6041 I believe.

2:1 deep low
1.25:1 low
1:1 direct
.85:1 over

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[MattOzark]

Do any of y’all have a brownie box for sale?


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[Clb]

Several types...
See what ya want.
2 speed , over\direct
2 speed under\direct
And the coveted 4 speed mentioned above!

Just remember unless it is in front of the t case ONLY DIRECT IN 4X4

 

[MattOzark]

Overdrive unit is what I’m looking for but shoot me a $ on the 4speed too


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[ttman4]

Several types...
See what ya want.
2 speed , over\direct
2 speed under\direct
And the coveted 4 speed mentioned above!

Just remember unless it is in front of the t case ONLY DIRECT IN 4X4

Stupid me! I still could kick myself! I had 2 speed, three 3 speed & one 4 speed (7041 I think) that when I got on a clean-up, thin out tear last yr & sold!
Stuck that Dana 60 in & converted my '90 CC dually to 4x4. Decided I'd never need any of the boxes so I sold them.....now wish I hadn't!!!

 

[Clb]

I came back to edit my second post.....Gone!
I donot have any of these units.
Also add, over,direct,under....

 

[MattOzark]

Just to be clear. You don’t have any aux transmissions right?


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[Clb]

Sorry no have gotz

 

[subway]

might be better off just putting an overdrive in if that is what you are after, those old boxes are around but seem super hard to find.

 

[Booyah45828]

The only way to know for sure what you're looking at is to remove the cover and count the teeth. Tags are pretty reliable but can be misleading after a few decades.

I bought a takeout spicer 7041 at auction 2 years ago for 500 bucks. Didn't include linkages/shifter otherwise I'd would have paid more. I'm not sure what your guy is asking for it but I thought what I paid was fair. Mine looks a lot larger then yours so I'd say yours is a 5xxx or 6xxx.

I wouldn't buy it without removing the cover though because you might be buying scrap. These things are old and hard parts are scarce.