[How long have you owned your celica?]

tsport bought new 13 years ago this coming Tuesday!! 127k miles

[[Solved] Pin pointed brake knocking noise but have I missed something?]

Not sure if this helps, had two noises when my rear disks and pads were replaced:-

Rotational noise when driving, not braking caused by the plate the brake shoes are fitted on rubbing on the inside of the disk hub, fixed by bending the plate a little with a hammer.

Clunking when braking at slow speed in traffic, caused by not having any shimms fitted. Previously had Red stuff pads on the rear which didn't need shimms