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Front brake hardware fit?

3.9K views 21 replies 16 participants last post by  DFinMA  
#1 ·
Random question…but has anyone ever had trouble getting replacement front brake hardware to fit? The power stop z23 pads I installed came with new hardware but for the life of I could not get it to seat correctly on the calipers or even force the pads into the hardware to make them fit. Wound up cleaning up and re-using the old hardware….
 
#4 ·
I put Powerstop pads on my '17 Outback but I don't remember which model #. I do remember on either the front or the back I couldn't get the new hardware to fit and ended up cleaning up and using the old ones.

I also remember that more than one Youtube video out there shows the hardware being installed incorrectly, which could also be a reason for parts not seeming to fit if you followed those.
 
#8 · (Edited)
you have to usually remove the hardware (whether replacing it or not) and with a wire brush, file and similar and clean up all the brackets they sit in. you ll see how much stuff gets under there and then yes, everything new is too tight. It s steel so you won t hurt it.

PS/. I have the pads fight me terribly when I didn t clean up everything first.
 
#9 ·
I spent years doing this the wrong way - using the parts store/aftermarket pads, just jamming them in until they fit, only taking the rotors off when they were completely shot... long story short, I ended up re-doing all my brake jobs at least once a year because one side wouldn't be gripping the rotor at all, the other side would be ground down unevenly, etc. Here's what I've learned:
  • If the rotor can be re-used, remove it and have a parts store machine it to give your new pads a fresh surface to bed in to. If it's too worn down, replace it. Either way, put a thin coat of anti-seize on the wheel bearing surface when you put the rotor back on.
  • Take your caliper slide pins out, clean them and their channels with brake cleaner, and lubricate them with a silicone-based grease like SYL-GLYDE. Petroleum-based grease will cause rubber to swell, and that can cause the rubber bushings in the slide pins to stick.
  • As cerbomark said, take a wire brush, a file, whatever will fit into the caliper bracket, and clean the caliper bracket where the pads/clips sit.
  • When reassembling, make sure the clips sit snug in the caliper bracket. If you can't get them to seat all the way, keep sanding the caliper bracket down until they seat properly. Use an appropriate brake parts lubricant on the channels where the "ears" of the brake pad will slide in and out.
  • OEM pads typically don't have fitment issues at this point, but many cheap parts store pads do. Once you get the pad into the caliper bracket, it should slide evenly in its channel. If only one end of the pad wants to slide, and the other end wants to stick, it may be necessary to sand the "ears" of the pad down a little until it fits into the caliper bracket and can slide evenly in the channel.

I live in salty New England, so I typically re-grease the pad channels and caliper slide-pins at least once a year.
 
#16 ·
I bought Akebono they make the OE pads . When I got my new pads and the hardware the stainless steel clips would not stay on the top of the caliper so I had to clean up the old ones and use them too.
That's odd. I just did my fronts with Akebono pads and replaced all four clips with the included new ones. They all snapped right into the calipers, neat as a pin, and the pads went in with only a modest amount of "argument." Maybe I was lucky, or I just live right?

I will say that for anyone considering brake pads, you might as well go with the best for not very much more than the cheap aftermarket stuff.
 
#20 ·
I found, that clamping the bracket into my vise, and sliding the pad in at an angle from the outer edge, lining the tabs up in the square slide area, then pressing the lower springs down and till the pad beck to straight worked well.

In the past, I have ground down the tabs on Brambo pads.

This may help,
 
#21 · (Edited)
Thanks to everyone for helping to restore my sanity. Doing the front pads and rotors on my 2019 and I f'd around with the Powerstop shims/clips for almost an hour and figured it must be me because they couldn't be that bad. They were. The Powerstop shims are garbage.

I saved my original clips and cleaned them up in the parts washer and with a brass brush. They snapped back into the stock caliper bracket securely and the Powerstop pads literally slid right in, in under a minute. 60 minutes messing with Powerstop clips; 60 seconds after cleaning and reusing the originals. What a joke.

As always, this community is a great help.
 
#22 ·
I have nothing new to add other than to beat the dead Power-Stop-Clips-Don't-Fit horse. Even more fun was the first set had a duplicate of one pad and missing another so I got replacements from PS and Amazon and none of the clips fit (specifically these). I reported it to PS and if I'm highly ambitious I will take everything apart again and send pics to them.

IIUC Akebono is the OE supplier but I can't find just the clips from them. The clips from Subaru are $8.25 each (!). Part number 26232AJ000 (link).

Does anyone know another source for OE clips, or others which may fit?