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Brownie Transmission


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  #1  
Old 04-12-2010, 09:23:42 PM
model k rumely model k rumely is offline
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Default Brownie Transmission

the old brownie transmission did they have an overdrive and if so what percentage over are they?
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  #2  
Old 04-12-2010, 09:31:31 PM
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Eric M. Eric M. is offline
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Default Re: brownie transmission

Yes and it depends on the model.
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Old 04-13-2010, 10:21:34 AM
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Doug Oldenburg Doug Oldenburg is offline
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Default Re: brownie transmission

I agree.....They did & it was according to model They were actually a "BROWNING Auxillary Trans." & they were available as Off road & Highway models. The Highway model was meant to be shifted "on the go" & the off road was not meant to be shifted while moving,though after you get used to it,you can do it fairly easy. The highway version was usually used to split the main box. One more thing,The easy way to tell if it is an overdrive {Without getting under the truck & watching the rotation of input & output shaft} is if for your higest gear the shift handle goes toward the Dash,{Bust your Knuckles } it is an overdrive.If the handle goes toward the back of the cab it is not.
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  #4  
Old 04-13-2010, 02:13:25 PM
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Eric M. Eric M. is offline
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Default Re: Brownie Transmission

Doug, I think he's talking about the over/direct/under boxes that were made by the Brown-Lipe Gear Co. They were later built by Spicer, but the name "Brownie Box" stuck. I've heard it used as a general term for either a Brown-Lipe, Spicer, or any over/direct/under transmission.

Here is some info on the Spicer models. I do not know if this cross-references back to the Brown-Lipe models.
http://www.6066gmcguy.org/spicer-5831-b.htm
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  #5  
Old 04-14-2010, 01:52:03 PM
Bud Tierney Bud Tierney is offline
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Default Re: Brownie Transmission

Eric is right on with "Brownie" becoming a generic term for any auxiliary transmission, even ones guys Mickey-Moused into their cars/rigs themselves...LOL
Mickey-Moused being a generic term for anything shoehorned? cobbled? shade-tree'd (installed)...(this's contagious)!!
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  #6  
Old 04-14-2010, 07:41:01 PM
model k rumely model k rumely is offline
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Default Re: Brownie Transmission

I am planning to repower my 1955 ford COE with a cummins from a 90 dodge truck and I plan on useing a auxillery trans with overdrive so I can keep the stock gears in the diff. This truck will be used for hauling my antique tractors. I will post some pics when I start the project
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Old 04-14-2010, 09:13:48 PM
John Schwiebert John Schwiebert is offline
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Default Re: Brownie Transmission

Hey 12-20, What model Cummins? Why not a little Fuller with a double overdrive?
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  #8  
Old 04-15-2010, 09:17:02 PM
model k rumely model k rumely is offline
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Default Re: Brownie Transmission

just a 5.9 B model thats from a 90 dodge
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Old 08-17-2010, 10:48:34 PM
Jerry Sweet Jerry Sweet is offline
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Default Re: Brownie Transmission

A 5831-B is a good off road transmission,with the deep under.The 5831-C or E are good transmissions for splitting all the gears in a 4 spead main.Spicer also made a 5531 prior to the 5831,that was about the same as the 5831.Watson also made a U-D-O transmission,about the same, size that I like better than the Spicer.In 1964 I had a 47 Hudson pick up that I put a modified 4-51 G.M.diesel in.I used a 4 spead,close ratio (2.20:1 first gear) corvette transmission with a 5531-B (2.36:1 first).If I wanted to I could start off in First/under (5.19:1 final)and go through the corvette gears,then shift the Spicer into direct and go through all the corvette gears again.Then out on the road I could use the spicer overdrive.I had to keep the engine R.P.M. up because I had a turbo blowing into a Mc Cullough centrifugal blower,in place of the roots blower.It shifted real nice.
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Old 08-18-2010, 05:17:28 AM
Trevor A Cole Trevor A Cole is offline
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Default Re: Brownie Transmission

Mine is 30% OD and 50% UD. However others I have checked vary considerably. The 30% will split most main gearbox ratios nicely.
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  #11  
Old 08-24-2010, 10:19:35 AM
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6point9diesel 6point9diesel is offline
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Default Re: Brownie Transmission

With that 5831 behind a diesel, you need to watch your max torque rating. I believe that 5831 is rated at 400 ft/lbs.

Paul
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  #12  
Old 08-25-2010, 11:48:00 AM
Jerry Sweet Jerry Sweet is offline
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Default Re: Brownie Transmission

The 5000 series Spicer Brown-Lipe auxiliary transmissions can handle a lot of torque.They are designed to go behind a 4000 or 5000 series main box or equivalent.Just like a 8000 series auxiliary is designed to go behind a 7000 or 8000 series main box.I understand that the first digit of the main transmission times 100 is the max.engine torque that the unit is designed for.If thats the case,then ,with a 6:i first gear ratio in the main and a full 500 ft/lbs of torque there would be 3000 ft/lbs on the input of the auxiliary.On a spicer (main or auxiliary) the first digit is the size,the second digit is the model,the third digit is the number of speeds,the forth number is the case material ( 1 for cast iron,5 for aluminum),the fifth digit is a letter and it denotes the gear ratio.There are some exceptions.Example a 8125 is a 12 speed,8000 series,with an aluminum case.
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Old 08-25-2010, 03:26:28 PM
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Default Re: Brownie Transmission

Jerry,

This site states differently than what either of us have stated for the 5831 unit...275 Ft/lbs

Clicky

I'm sure I read 400 in a Spicer manual. I checked into this prior to purchasing one for a project I am working on, and the reason it sticks out in my head is because the engine I'm using is rated at 400.

Your information certainly does seem logical, and it gives me a higher rating (which I've been slightly nervous about). So, I'm inclined to believe you.

Thanks!

Paul
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  #14  
Old 08-27-2010, 11:15:47 AM
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Default Re: Brownie Transmission

What trucks came with these add on transmissions? I was thinking of adding something to my 1 ton 1949 IHC truck. It has a later BG241 engine with a 79 Ford rear axle, t98 trans.
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Old 08-27-2010, 03:10:16 PM
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Default Re: Brownie Transmission

I have my doubts that the 5831 series boxes are only rated for 275 ft/lbs. Consider that they were used in trucks with the GMC V12 engines, which made almost 600 ft/lb of torque at the crankshaft. The 5831 was mounted AFTER the main transmission, so imagine the torque numbers the box must have been seeing in first, second, third, ETC.
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  #16  
Old 09-03-2010, 10:38:06 AM
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6point9diesel 6point9diesel is offline
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Default Re: Brownie Transmission

If you've ever pulled the top off one of these units you will see that they are very well built. I am young enough, so that I wasn't around in the 5831's hay day. I've only seen them behind flat head Fords and IH 345's.

I think the 275 is under rated as well. But it sure makes things interesting if you're trying to figure out what it can handle.

Thank you.

---------- Post added at 09:38 AM ---------- Previous post was at 09:29 AM ----------

Vernon,

They came in Fords, GMC's, and Chevy's. Some of the auction sites have sold a few over the past few years. You could also have good luck at a good old truck salvage yard. If you say your looking for a 5831 they should know if they have one and where to look.

I've seen them go for anywhere from 400-800

Paul
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Old 02-28-2012, 12:17:02 PM
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Default Re: Brownie Transmission

I have a 1967 power wagon that is all stock. It has the 251 Flathead 6 that puts out 200 lbs of torque at 1600 rpm to a 420 to a 201 with a 1.96/1 low. I would like to keep this drive train as stock as possible. But also want to go down the road with it over 45 mph. Placing this transmission behind the 201 would let me have good gearing while letting me return to stock with very little modification.
Could I use the 5831F, or 5831G with the 2.0/1 ratio in reverse to get a .5/1 ratio or would this cause issues with the transmission.
Were the F and G transmissions those that could shift on the fly? If I could go through the 420 gears then go into the 5831's 3rd 1/1 direct to 2nd gear .78/1 or.76/1 to 1st .5/1. That would really improve the usefulness of this truck.
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