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Clunking noise when brakes applied

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Old Sep 23, 2003 | 11:43 AM
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Question Clunking noise when brakes applied

I have a 1988 F-150 4x4 with a 4 inch trail master lift, when I approach a stop and apply my brakes I hear a clunk, like the suspension is shifting, I think its the beams that come back from the axle to below the cab, I noticed there were bushings there, but when layin under the truck, everything looks tight. any suggestions would be greatly appreciated.
 
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Old Sep 23, 2003 | 11:53 AM
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Clunking noise when brakes applied

That is pretty common. It usually is the bushing on the end of the arms. Do you hear it when you gas it too? If not, check both sides, mainly the front side bushing. It's easier to see these move if someone can watch them while you move the truck back and forth.
 
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Old Sep 23, 2003 | 12:05 PM
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Clunking noise when brakes applied

Thanks Stepman, it only does it on braking. I am guessing from looking at the configuration of the front axle that one side has downward pressure, and the other has upward pressure.
 
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Old Sep 23, 2003 | 12:26 PM
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Clunking noise when brakes applied

Are we talking about the same thing. I was thinking of the radius arms. They keep axle from moving front to back.
 
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Old Sep 23, 2003 | 12:35 PM
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Clunking noise when brakes applied

yes, those are the ones. I purchased the bushings for $20 over lunch. Are they a bear to change?
 
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Old Sep 23, 2003 | 12:36 PM
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Clunking noise when brakes applied

No, not really.
 
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Old Sep 25, 2003 | 09:25 AM
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will changing those bushings mess up alignment? Mine are really messed up but I'm afraid if I change them they will.
 
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Old Sep 25, 2003 | 10:20 AM
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It shuoldn't mess up the alignment. All they do is hold your axle at a fixed point. Being bad they will wear your tires since your wheel will move back and forth, changing your alignment.
 
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Old Sep 25, 2003 | 06:32 PM
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Check your u-bolts for tightness too.
Tony
 
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