SIMPLEROLLA

They must be garbage rotors if they crack at the mounting holes. There's very little stress on the rotors at the actual mounting hole locations if you've torqued your wheel nuts correctly. The one I saw on the road the other day was from a volvo s60 (still the original rotors w/ 20ks on the clock). Others I saw was from a Tarago, E46 BMW, Redrilled same as u from an R33 GTR and R32 GTR(they were actually brothers that the disc basically cracked a day after the R33) and the last one was from a JEEP CHEROKEE 97 w/ drums cracked. Find the nearest size you want to do it properly. Its not worth taking the risk. Another thing you can do is go to Silverwater if your in sydney and talk to the guys at DBA as they got spec sheets that is not written on the catalogue that spare parts shop. I wouldn't risk modifying DBA's discs now they source many of their range from TW. Myself and others have done the same mods over the last 10 years on MANY corolla's with a lot of those seeing track work (using custom DS2500 pads, cut down from an evo pad or SW20 turbo Greenstuff pads) with zero issues. Most were doing using brembo discs or the old Aus made DBA's, quite a few with genuine toyota discs too when they were in good condition (AE101 superstrut discs, 275x25mm). The majority of the disc modifications were done by Kevin at St Mary's Specialised Brake and Clutch after consulting DBA directly. My Mrs's daily driver still has the same style upgrade with turned-down brembo 5x100 discs redrilled to 4x100, they've clocked up 40,000km now with zero issues and were engineered in Sydney and are also now modplated in Brisbane. The engineers saw no issue with the structural integrity of the modified discs. Thats good to know you got no issues with it. Possibly there are some disc that are defective in metal structure and sadly I witnessed the unfortunate ones. Good luck with your mods. Cheers

They must be garbage rotors if they crack at the mounting holes. There's very little stress on the rotors at the actual mounting hole locations if you've torqued your wheel nuts correctly. The one I saw on the road the other day was from a volvo s60 (still the original rotors w/ 20ks on the clock). Others I saw was from a Tarago, E46 BMW, Redrilled same as u from an R33 GTR and R32 GTR(they were actually brothers that the disc basically cracked a day after the R33) and the last one was from a JEEP CHEROKEE 97 w/ drums cracked. Find the nearest size you want to do it properly. Its not worth taking the risk. Another thing you can do is go to Silverwater if your in sydney and talk to the guys at DBA as they got spec sheets that is not written on the catalogue that spare parts shop.

Be very careful on what you do on disc rotors as they tend to crack on the weakest point especially from hot to cold instantly like when it rains. Ive seen it happened a couple of times already and the latest one was just this morning and it was cracked where the mounting holes were and this one hasnt been redrilled some extra holes.

DEFINITELY A WHEEL BALANCE PROBLEM. iF YOU GOT STEERING WHEEL VIBRATION AT 60-80KMS, IT WOULD BE A TIE ROD END OR A STEERING RACK PROBLEM. Never go to those places for wheel alignments. They never do a good job. If your in Sydney, try ACE tyres as they will tell u if they can do it or not or they never touch a car with suspension problems or or steering problems.

PHAT ANOTHER ZRE!!! Welcome bro why u from?? Sydney

Hi Guys, My name is Jon. First time in here. Im a mechanic by trade but mostly involve in vehicle inspections and breakdowns on the road. Way easier job than being in the workshop all day. I own a ZRE152 sedan. Just a typical family car and only owned Toyotas all my life from my Grandfather to every single uncles and aunties. Even my company car is a Toyota. I hope everyone will have a good cruisin' day today........