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Wtf is this thing? Factory limiting strap?

Discussion in 'The Garage' started by sled_dog, Feb 14, 2004.

  1. sled_dog

    sled_dog 1 ton status

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    Ok I was looking at the exhaust on my burb trying to see what I would need to do to replace it when I noticed this thing on my rear diff:
    [​IMG]
    That picture the passenger side is fully stuffed cause I wanted to see if it acted weird when flexing.

    [​IMG]
    Man this thing needs more flex, and tire.
     
  2. cuzinjay

    cuzinjay Registered Member

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    do the brake lines run into it. look like it could be a valve to proportion the brake to the load /forums/images/graemlins/thinking.gif
     
  3. sled_dog

    sled_dog 1 ton status

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    Hmm that kind of makes sense. The brakes used to run into it but the previous owner broke it and just ran the straight brake line you can see. Need to strap that to the frame sometime.
     
  4. willyswanter

    willyswanter 1/2 ton status GMOTM Winner

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    It's the load sensing brake thingy. It gives more breaking pressure in the rear as you get more weight on the rear of the truck.
     
  5. 4xcrazy

    4xcrazy 3/4 ton status

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    My thoughts are if it's not hooked up to help anything, get rid of it. thats what it looks like here, like you said it was used at one time, but no longer, remove it,,, /forums/images/graemlins/waytogo.gif
     
  6. sled_dog

    sled_dog 1 ton status

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    Hmm come to think of it, that would explain why my rear brakes lock up first /forums/images/graemlins/ignore.gif /forums/images/graemlins/ignore.gif they are always getting the maximum braking power! Hmm guess I need a prop valve on there.
     
  7. Confedneck

    Confedneck 3/4 ton status

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    thats whats called a "height sensing proportioning valve"
    and it helps the brakes apply more evenly if the rear springs are compressed.. toyota still uses a setup similar, albeit smaller than that, today..
     
  8. thatK30guy

    thatK30guy 1 ton status Premium Member

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    [ QUOTE ]
    thats whats called a "height sensing proportioning valve"
    and it helps the brakes apply more evenly if the rear springs are compressed.. toyota still uses a setup similar, albeit smaller than that, today..

    [/ QUOTE ]

    I second all the above info.

    Matter of fact, those didn't start til somewhere around '81 and they were built into ALL 3/4 and 1 ton trucks. /forums/images/graemlins/thinking.gif
     

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