SSBC A-153 Front Drum to Disc Brake Conversion - Non Power

SSBC A-153 Front Drum to Disc Brake Conversion - Non Power - 71 Demon 340

Shorty1029 said
No problem. I will take any and all the help I can get at this point.Much appreciated. I did receive a new set of rotors from SSBC to try in the Spring. I will pass this info along to my mechanic as I am that knowledgeable. I did my research as to what options I have without going to a larger bolt pattern and SSBC seems to be the only option for the small bolt pattern. I know my mechanic and SSBC had many discussions about how to mount calipers due to fitment issues, etc.
Those conversations were way over my head unfortunately.
SSBC did tell me that the rotors are not customer made, but cast/molded by the 100s so they don’t believe the rotors are the problem. Car stops fine but the shake in the steering is bad at 35-50 mph. Looks like we will try the rotors and then go back to drums I guess if that don’t help.

DoctorDiff sells the 73+ disk brake conversions with a small bolt pattern option. It’s not quite that simple, because the 73+ disk brake conversion widens the track width compared to the KH style disks. So just because the pattern matches doesn’t necessarily mean your wheels will still fit.

The other thing is, if you switch back to drums and that solves the problem, you have will have confirmed that the SSBC kit was the issue.

And their explanation of how the rotors are made doesn’t let them off the hook. Just because the rotors are cast by the hundreds doesn’t mean there aren’t defective ones. It doesn’t even mean they don’t have an entire bad batch, because as we know just because someone bought a brake kit doesn’t mean they installed it the next day and tested the car. People order parts and don’t get to actually installing them for months. And even people that install them right away may not have that car on the road for months or even years. They could have dozens of defective parts out there and not heard back about them yet.