hello, i have an 86 iroc with 4 wheel disc brakes. not a daily driver, so its only driven on weekends. when i first drive it, the first stop, there is a load noise in rear brakes. there is also a clicking sound (goes away with brakes applied) for the first few miles. has anybody else had this problem? i know they came out with an updated version in the later years of the 3rd gen f-body. thanks, tom