I recently found out my stock front brake calipers were sticking and needing to be replaced. I saw that this is pretty common, and saw that a pretty common upgrade is to use 2010-2013 gx460 calipers, rotors and pads, they’re a direct replacement, just a little beefier. I went with the Powerstop Extreme Z36 gx460 calipers, rotors and pads. After installing, bleeding, and getting tires back on, I went to do the bedding in. I didn’t make it any farther than backing out of my garage - there was very loud clunking sounds from both front sides. I Pulled it right back in. It happens forward and reverse, clunks loudly every time it stops.
Then I watched multiple YouTube videos of this upgrade, second guessing myself to make sure I wasn’t missing anything. I did everything correctly - torqued the caliper bolts to 73 lbs, used the new pins and hardware, greased the pins, bled all 4 corners, topped off fluid, what else, that’s it about it, there really not much to it.. One of the videos even uses Powerstop brand.
I pulled the tires and made sure there’s no play or slop anywhere - there’s not, the calipers are tight, the the pads are sitting correctly, no visual issues that I could spot.
My next step troubleshooting was to take everything back off - pulled the calipers off, pulls the rotors and pads, rec-cleaned all of the connection points with a wire brush. Assembled everything back together, and still had the awful clunking sounds.
Anybody have any thoughts on this? I don’t know what else to do at this point except not use them, which is not very ideal at all.. I’ll probably contact Powerstop on Monday, but because they’re not the “correct” brakes for a gx470, I’ll think that’s where their support likely end. I’ll include a couple of pics, and a link to the parts that I used. I was going to include a video but I don’t see how to add one. Thanks in advance for info!
Pads and rotor kit:
Calipers:
(I Didn’t actually purchase from Summit Racing, but linked there because I had issues linking to Powerstop pages directly.)
Then I watched multiple YouTube videos of this upgrade, second guessing myself to make sure I wasn’t missing anything. I did everything correctly - torqued the caliper bolts to 73 lbs, used the new pins and hardware, greased the pins, bled all 4 corners, topped off fluid, what else, that’s it about it, there really not much to it.. One of the videos even uses Powerstop brand.
I pulled the tires and made sure there’s no play or slop anywhere - there’s not, the calipers are tight, the the pads are sitting correctly, no visual issues that I could spot.
My next step troubleshooting was to take everything back off - pulled the calipers off, pulls the rotors and pads, rec-cleaned all of the connection points with a wire brush. Assembled everything back together, and still had the awful clunking sounds.
Anybody have any thoughts on this? I don’t know what else to do at this point except not use them, which is not very ideal at all.. I’ll probably contact Powerstop on Monday, but because they’re not the “correct” brakes for a gx470, I’ll think that’s where their support likely end. I’ll include a couple of pics, and a link to the parts that I used. I was going to include a video but I don’t see how to add one. Thanks in advance for info!
Pads and rotor kit:
Calipers:
(I Didn’t actually purchase from Summit Racing, but linked there because I had issues linking to Powerstop pages directly.)
