Rear wheel/brake noises, 94 Celica GT Options

[jlive]

I have ongoing issues with my rear wheels so I'll start from the beginning.

My car used to vibrate when coming to a stop. I narrowed it down to the right rear rotor being bad so I replaced it and the rear brake pads.

Now every time I would brake I would here a squishy type sound coming from the rear end. I would hear it once with every rotation of the tire. So it would speed up and slow down as I did. I couldn't hear anything if I was just driving or if I broke hard, just during regular braking. I couldn't tell which side it sounded like it was coming from, but it sounded like the rear middle of the car. I thought it could be the new rotor so I replaced it with my older one. The braking vibration came back, and now I heard the squishing sound all the time not just during braking.

So now I thought it could be the new pads so I replaced the new pads with the older pads, and put my new rotor back in. Now things got really bad. I started hearing a knocking sound when I drove, and the squishing sound when I was braking. Again they both happen once per rotation of the tire.

So I changed everything back. Now I have the new rotor and the new brake pads. The knocking sound is still there but the squishing sound seems to have gone away, or its just overshadowed by the loud knocking sound.

I looked at my calipers and they look fine, the boots still look they are in good condition. I tried to wiggle the tire to see if the bearing was bad and it didn't wiggle (and yes the parking brake was off). Any help would be appreciated.