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#19516 03/28/2004 4:53 PM | Joined: Jun 2001 Posts: 379 Shop Shark | | Shop Shark Joined: Jun 2001 Posts: 379 | Now that the crushers are going full blast smashing old iron to send to China, it's time to decide what you want to save fast. There is a one ton gmc in the wrecking yard with what I believe you would call a "brownine over and under" box. It is installed in place of the carrier bearing. Does anyone here know much about these boxes? I had heard they were pretty neat because of the overdrive and underdrive features for hauling.  | | |
#19517 03/28/2004 10:43 PM | Joined: Feb 2004 Posts: 29,846 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,846 | How many gear positions does it have? Some Brown transmissions have over, direct, and under gears for a total of 3 speeds. If it has 2 shift rods, you've probably got a 3-speed unit there. Grab it, along with the shifter assembly out of the cab! The next trick is learning to shift it, since it's a non-synchronized "crash box" transmission! I learned to drive 18-wheelers on a 5X3 speed setup with two shifters.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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#19518 03/29/2004 3:27 AM | Joined: Jul 2003 Posts: 101 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2003 Posts: 101 | 6066.com has ratios for some of the spicer auxillary transmissions that were used by GM. Click on the GMC TRANSMISSION link.
You might also try searching for "Brown-Lipe Bob" on google. He knows a lot about the Brown-Lipe aux trannys and likes to talk about them. | | |
#19519 03/29/2004 3:38 AM | Joined: Jul 2003 Posts: 101 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2003 Posts: 101 | Below is one of the emails I recieved from Brown-Lipe Bob. Good information.
Steve, the Dana/Spicer units being newer would mean that parts would be somewhat easier to find. As far as the older Brown-lipe units holding up under the higher speeds of today's trucks, I can't really say. I have not heard of any problems from people that I have talked with. One guy was making round trips from Oklahoma to Mexico hauling flowers and he had a lighter 30 series mounted in a **** Diesel and it held up okay. The only comment that I have heard from some people is that the gears whine at higher rpms.
The older Brownies have a flat top on the case which the Spicer unit does not have. The flat top allows the unit to mount higher up next to the body. The Brown-lipe units had the capability of mounting a Power tower on it. The power tower was a top mount PTO that could deliver the full input torque.
I don't have a lot of info on the Spicer units but will help if I can. Keep me posted. Robert. | | |
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