[quote author=Blain link=topic=36019.msg412748#msg412748 date=1351342110]
No kept the old pads as they were only half gone! But have since changed them, so q buckle wouldn't cause this? How would u kno if the piston was seizing?
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With a buckled wheel the shudder would be there all the time. After a drive put your hand on the center of each wheel, if one is significantly hotter than the rest that would be the caliper with the problem. Doesnt work all the time though.
Can you feel one side shuddering more than the other? More than likely if you have a sticking caliper the disc will eventually warp on that corner from heat.
If you take off the caliper and try push the piston back with a pipe grips ( If you have ) if you cant push is back easily then that is the problem.