You Dont Grease It Up enough
You can try but the squeal will probably come back. Brake squeal is usually due to cracked, glazed, contaminated or inferior brake linings.
The most problematic cause is that if your brake pads/shoes are worn down to the changing point. Other causes can be that your rotors/drums are glazed (due to overheating) and or simply brake dust and other road debris.
Well if its more of a squeal, your brake pads are probably low, and need to be changed soon. That will occur more likely if you have rear disc brakes.
I believe your 4-Runner has an option of either rear drum or rear disc brakes. If the squeal is coming from the rear and you have rear drum brakes, have them cleaned and adjusted. If the squeal comes from the front, a shim may have slipped off of one of the brake pads and is scraping on the hat of the rotor.
friction
1. Remove or disconnect the following:§ Rear wheel§ Anti-squeal springs§ Clip and guide pin§ Disc pads§ 4 anti-squeal shims from each padTo install:1. Install or connect the following:§ Apply disc brake grease to both sides of the inner anti-squeal shims§ Install 2 shims on each pad2. Using a suitable tool, compress the piston carefully in the cylinder bores§ Install pads§ Anti-squeal springs§ Rear wheelNote: Make sure that the arrows on the anti-squeal shims face the direction of wheel rotation.
brake shoes or pads are worn and need replacing
I just went through the same thing with my 2004 Wrangler . I had to replace the rear pinion bearings and races.
You need to be more specific.
brake switch out of adjustment, master cylinder comp port plugged, rear brake hose collaspsed or ebrake cables seized
Sticky or stuck brake calipers. Sticky or stuck parking brake mechanism.
what causes the rear lights to stay on while engine is running. the car is park