OK i am 100% sure i know what is the problem is with the caliper rattle now
i have never had this brake caliper rattle before
but after changing the discs and pads with genuine GM parts
i had a rattle start after a month from the left hand side when going over bumps in the road
so i changed the shim clips over for the old ones and noticed the noise has gone
on closer inspection i noticed the clips in the center on the new ones that rattled
were not in the same position as the old ones and were not holding the clips in position
making the brake pads rattle in the caliper
here are the old ones note the clip position in the center
and the new ones i was given that rattle note the position of the clip in the center
it is in the wrong position
so it looks like there are faulty batches of shims clips out there
to fix this simply bend the center clip into the correct position
and the rattle will stop :cool
i have never had this brake caliper rattle before
but after changing the discs and pads with genuine GM parts
i had a rattle start after a month from the left hand side when going over bumps in the road
so i changed the shim clips over for the old ones and noticed the noise has gone
on closer inspection i noticed the clips in the center on the new ones that rattled
were not in the same position as the old ones and were not holding the clips in position
making the brake pads rattle in the caliper
here are the old ones note the clip position in the center
and the new ones i was given that rattle note the position of the clip in the center
it is in the wrong position
so it looks like there are faulty batches of shims clips out there
to fix this simply bend the center clip into the correct position
and the rattle will stop :cool