? weird contraption behind rear driver tire - DodgeForum.com


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? weird contraption behind rear driver tire

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Old 03-17-2014, 06:18 PM
96ramcj
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Default ? weird contraption behind rear driver tire

does anybody know what this thing is on the frame rail behind the rear driver side wheel on my 99 ram 2500 ? its leaking brake fluid.

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Old 03-17-2014, 06:30 PM
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proportioning valve?

Or is that on the pumpkin?
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Old 03-17-2014, 06:32 PM
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I think it's supposed to adjust brake pressure to the rear wheel depending on the weight loaded. Or something to that order.

IIRC, people have bypassed it with no ill effects, but I'm not sure.
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Old 03-17-2014, 06:38 PM
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kejobe has the right of it. Dodge even did away with them, as they were kinda problematic. Bypass it, and get rid of it.
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Old 03-17-2014, 06:58 PM
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thanks for your help guys. I found all kinds of info about bypassing it on the internet once you gave me the info so I could search.
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Old 03-17-2014, 11:01 PM
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How in the perfect world does that work? I'm just curious
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Old 03-18-2014, 09:12 AM
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Quote:
Originally Posted by jpsycoboy5 View Post
How in the perfect world does that work? I'm just curious

In a perfect world, it works quite well.

Hope that helps!

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Old 03-18-2014, 09:25 AM
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My trucks from 98 and I still have that part from factory. I just recently replaced the reservoir on the rear Axel, lines, and the drums with spring kits, adjusters and the shoes.
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Old 03-18-2014, 09:28 AM
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Its a load sensing proportioning valve, it has an arm attached to the rear axle, the more weight you put in the bed of the truck causes the arm to move at the proportioning valve and that allows the rear brakes to adjust for the added weight.
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Old 03-18-2014, 09:39 AM
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HA! So I was sorta kinda right
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