1998 Other Chevrolet Models Truck Shakes When I Brake

1998 CHEVROLET
69,000 MILES • V8 • 4WD • AUTOMATIC
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THEOPHYLAKTOS
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My K1500 shaked when i brake at 45 to 40 mph. It goes away when it hits 39. Ive checked to make sure the tires are not cupping/scalloped or wearing unevenly. I rotated them checked the pressure, balanced them, checked the bearings and everything checks out fine. The only thing i can come up with is maybe the front rotors are warped but it only does it at that speed and the truck doesn't dip forward when i brake. Or maybe the drum brakes are out of round. Thats all I can think of, hopefully someone can help me with this problem.
Sep 27, 2010 at 12:27 PM
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HMAC300
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usually when shaking/vibration happens it is brakes but not always. If a rotor is out of round it gives a pulsation meaning it will feel like your pedall is going up and down when you brake. that usually entails a brake job, turning or replacing rotors and replaceing pads. But this could be a frozen caliper or you have a front end problem which i think you do. Have a pro check out the front endfor a bad ball joint/idler arm, etc. it could be an axle shaft as well but i don't think so.
Sep 30, 2010 at 8:35 AM