GoreMaker
Newbie
EDIT: Turns out NRS' application list was wrong. They apologized for the error, are resolving the issue, and issued me a full refund.
ORIGINAL POST: I just did a complete brake job on my 1999 Suburban K1500 gasser a little over a month ago. Front pads and rotors, rear shoes, new master cylinder. I spent some extra money and splurged on the best Raybestos rotors I could find in stock as well as some NRS brake pads.
Mostly went well, though the front brake pads gave me some minor grief. The studs on the backing plate that are supposed to fit inside the caliper piston were spread a little too far apart. They ended up sitting on the rim of the caliper piston, which I thought was weird. A little grinding to knock off a section of each lower stud was enough to get them to sit flat against the caliper piston, and I figured all was well. They've been braking well since then and I was happy.
Fast forward to today, I needed to do an upper ball joint before a long road trip on Wednesday. While getting ready to do the job, I noticed something weird on the brand new brake rotor:
That's a deep groove all the way around the rotor hat. It's 1/8" deep, and it's caused by the outer brake pad. I kinda freaked out at seeing this, so I checked the other side. Sure enough, same thing was happening there. So I pulled a caliper off to figure out why this was happening. I confirmed that the brake pad is inserted and secured properly. It was definitely topped out into the brake caliper, it couldn't possibly sit any higher in there, and the spring clips were tight.
I thought maybe the brake rotor had an oversized hat that interfered with the pad, but it slips over the hub exactly like it's supposed to. So I brought the outer pad and the brake rotor to my local Advance Auto and asked to see a rotor and brake pad set. Sure enough, the rotor hat diameter was spot on compared to the Car Quest one they had in stock, no issues there. But the brake pads... holy crap:
The NRS brake pad is at least 3/16" taller than the Car Quest one. This is why it was digging into the rotor hat. I brought home the new brake pads and rotors and I compared the inner pads. Sure enough, the NRS inner pads are also taller than the Car Quest ones, even MORE than the outer pads, and the studs on the back end up being 1/8" too low, which is why they didn't fit inside the caliper piston without grinding them down:
I tried calling NRS to discuss this issue. What I got was an automated message asking me to leave a voice mail. The voice mailbox is full, so I can't leave a voice mail.
I'm pretty angry about this. There was never any noise to indicate that this was happening. The calipers bolted back in without issues, and I had no trouble turning the rotors by hand after installation. Any noise I heard at that point could've been attributed to the typical sound of new brake pads on new rotors. Either one of my brake rotors could've sheared off at any moment, most likely in a panic braking situation, potentially killing my entire family and innocent bystanders.
ORIGINAL POST: I just did a complete brake job on my 1999 Suburban K1500 gasser a little over a month ago. Front pads and rotors, rear shoes, new master cylinder. I spent some extra money and splurged on the best Raybestos rotors I could find in stock as well as some NRS brake pads.
Mostly went well, though the front brake pads gave me some minor grief. The studs on the backing plate that are supposed to fit inside the caliper piston were spread a little too far apart. They ended up sitting on the rim of the caliper piston, which I thought was weird. A little grinding to knock off a section of each lower stud was enough to get them to sit flat against the caliper piston, and I figured all was well. They've been braking well since then and I was happy.
Fast forward to today, I needed to do an upper ball joint before a long road trip on Wednesday. While getting ready to do the job, I noticed something weird on the brand new brake rotor:
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That's a deep groove all the way around the rotor hat. It's 1/8" deep, and it's caused by the outer brake pad. I kinda freaked out at seeing this, so I checked the other side. Sure enough, same thing was happening there. So I pulled a caliper off to figure out why this was happening. I confirmed that the brake pad is inserted and secured properly. It was definitely topped out into the brake caliper, it couldn't possibly sit any higher in there, and the spring clips were tight.
You must be registered for see images attach
I thought maybe the brake rotor had an oversized hat that interfered with the pad, but it slips over the hub exactly like it's supposed to. So I brought the outer pad and the brake rotor to my local Advance Auto and asked to see a rotor and brake pad set. Sure enough, the rotor hat diameter was spot on compared to the Car Quest one they had in stock, no issues there. But the brake pads... holy crap:
You must be registered for see images attach
The NRS brake pad is at least 3/16" taller than the Car Quest one. This is why it was digging into the rotor hat. I brought home the new brake pads and rotors and I compared the inner pads. Sure enough, the NRS inner pads are also taller than the Car Quest ones, even MORE than the outer pads, and the studs on the back end up being 1/8" too low, which is why they didn't fit inside the caliper piston without grinding them down:
You must be registered for see images attach
I tried calling NRS to discuss this issue. What I got was an automated message asking me to leave a voice mail. The voice mailbox is full, so I can't leave a voice mail.
I'm pretty angry about this. There was never any noise to indicate that this was happening. The calipers bolted back in without issues, and I had no trouble turning the rotors by hand after installation. Any noise I heard at that point could've been attributed to the typical sound of new brake pads on new rotors. Either one of my brake rotors could've sheared off at any moment, most likely in a panic braking situation, potentially killing my entire family and innocent bystanders.
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