Front end vibrates badly-only when brakes are applied. No pedal pulse.

16 inch TA wheels, torqued to 100 lbs.

Replaced idler arm... made no difference.

What next?

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87 Z28 TTops
89 vette 383, ported plenum, ported heads, vette OEM TC, 700R4, SLP, Catco, Edelbrock CB, Ultima, MSD, Accel, TA Wheels (16's), Alpine, RED

72 Pinto Wgn
85 5.0L H.O., Jackson Gear Drive, B&M Megashifter, AOD, Ultima, Pertronix, MSD, Accel, Supertrapp, Sony, lowered, shaved, tinted, WHITE

Does the car vibrate at any other time while driving? I would suspect the brakes if it only happens when you brake. You could have a cracked rotor and not feel the pulsing/vibration. Other than that im stumped.

Nope... only under braking. Could it be that the castle nut is too loose on the spindle?

[This message has been edited by kage87z (edited 09-05-2001).]

It sounds like a rotor could be warped. Try spinning the rotor without the wheel and use some kind of marker. It shouldn't be hard to tell. I've had that problem - feels like the steering wheel is giving your hands a massage.

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Rick Dorion
69 RS Conv,355,M20,4.10's

Could also be worn ball joints, tie rod ends, etc. The extra load from stopping can make it go unstable, though I'd expect these to at least cause it to wobble at SOME speed without the brakes applied, even if it might be worse, or more consistent, under braking.

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Huck
355 SBC powered '87 Chrysler Conquest TSi - 10.3:1, Vortec heads, XE 268H cam, HEI, eq. length shorties, Performer RPM intake, 750 Edelbrock (1407), T-5 and 3.54:1 posi indep. rear

I had that problem on a couple of cars and it was brakes/rotors on one and seperated tires on another. Good luck Pete

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67 red camaro convertible, 78 silver anniversary vette, 1985 Z28 camaro, 1970 chevelle currently undergoing deer hit repair.

[This message has been edited by no1dc (edited 09-05-2001).]

could be a bent spindle as well... if the rotor and caliper aren't lined up, you will get some weird stuff going on.