Frequently Asked Questions Ask APW
Is it okay to machine a customized brake disc for the Toyota 4Runner?
Answer: Absolutely. But selecting the proper material is very crucial before going ahead with it. The brake disc should be manufactured using the appropriate material. It must have a high friction coefficient that can absorb and disperse large amounts of heat without adversely affecting the braking performance--gray cast iron plates are a very good choice. Ceramics and Al-MMC are of the highest quality, but they can also get very expensive.
What is the best type of brake disc for the Toyota 4Runner?
Answer: There are four types of brake discs available in the market. The standard stock for all cars is the flat-faced disc; it has a large surface area that gives decent braking power. However, as the part ages, it has a tendency to overheat, and may cause the disc to warp. A drilled disc is also available; heat is distributed to all the holes that are scattered throughout its face. The downside is that a drilled disc is prone to cracking. A dimpled disc on the other hand, scatters the pad debris produced when braking. These are also lightweight compared to its counterparts. Lastly--and probably the best choice for the Toyota 4Runner--is the grooved disc. The face of the disc has diagonal lines cut into them to allow heat to dissipate when driving fast. It also expels brake dust to prevent pad glazing. But installing a grooved disc is a bit tricky; it has to be fixed in such a way that the groove spins outwards, opposite the usual rotation of the disc.
When should the Toyota 4Runner brake disc be replaced?
Answer: That depends on the driving demands sustained by the vehicle. If the car is used mostly for city driving at the usual cruise speeds, then the disc can last for five years at the most. However, if the vehicle is mostly driven for performance, the brake disc might need to be replaced at least every two months.