firechicken76

iTrader: (14)

car is an 84 trans am, but all 4 of the brakes are wilwood disc brakes, 4 piston calipers, i was looking under my car today at an 02 Censor and noticed a few cracks in my rotors, the crack are long and thin, and are only on the front rotors, what would cause this? i dont think they have all that many miles on them, maybe 15k? i dont do burn outs, EVER. I searched but couldnt find anything pertaining to my perticular setup...go figure lol

anyway this site has been very helpfull to me, and appreciate any help i can get.

Major_Lee_Slow

iTrader: (1)

It sounds like they are heat stress cracks which are commonly seen on cross drilled rotors, even good ones. For safeties sake, it may be time to replace them.

Brakemotive

iTrader: (73)

Stress cracks are often caused by thermal shock, this can be an issue that may have started the first time you used the brakes and the cracks are just now large enough to see them, however it is something that can develop over time with abusive high temperature use.

firechicken76

iTrader: (14)

ok, i see, so ill replace them of coars, btw they arent drilled

Major_Lee_Slow

iTrader: (1)

May I ask, what brand rotors are they?

billyb

iTrader: (15)

car is an 84 trans am, but all 4 of the brakes are wilwood disc brakes, 4 piston calipers,

Major_Lee_Slow

iTrader: (1)

Doh you did mention that in your first post.

~2000CamaroSS~

iTrader: (5)

I have the same problem in my Baer EradiSpeed rotors should I /we be worried ?

firechicken76

iTrader: (14)

could they just be lines from the pad from sitting a couple days?

~2000CamaroSS~

iTrader: (5)

I don't think that is the problem with mine because the cracks / lines are all around the rotor. I have seen only one other person have this problem. Should I be worried that there going to desinagrate or break on me.