Front vs rear brake wear

[Clint0511]

Had my brakes checked out when I got my rig at 257k miles. Now at 266k... Had a weird ticking noise on my RR wheel... And then a grinding noise started... Here's where my pad came to rest, and the resulting caliper

I checked my front pads after replacing both rear calipers, rotors and pads... And I have like 7 or 8 mm of pad left....

 

[midfat]

Trying to understand this. You bought your rig at 257K miles and YOU checked your rear brakes. You physically verified that rear brake pads were present, and they had reasonable compound remaining? Now, 9000 miles later, your pads wore so excessively that one fell out and the caliper piston is now making direct contact with the rotor?

"Had my brakes checked out" sounds like someone else did this verification. If that's the case, I'd start with that person. No way your rear brakes could have gone from GOOD to THAT BAD in less than 10k miles.

On the bright side, there parts aren't terribly expensive, and it's a pretty easy fix.

But still. Wow.

 

[Clint0511]

Trying to understand this. You bought your rig at 257K miles and YOU checked your rear brakes. You physically verified that rear brake pads were present, and they had reasonable compound remaining? Now, 9000 miles later, your pads wore so excessively that one fell out and the caliper piston is now making direct contact with the rotor?

"Had my brakes checked out" sounds like someone else did this verification. If that's the case, I'd start with that person. No way your rear brakes could have gone from GOOD to THAT BAD in less than 10k miles.

On the bright side, there parts aren't terribly expensive, and it's a pretty easy fix.

But still. Wow.

Sorry, for the vagueness... I had my brakes checked out when I got the truck. I should have done it myself, but I was a bit busy, so dropped it off for some routine maintenance.

My front rotors right now have 7 or 8 mm of pad, so I'm guessing they checked the front face and called it a day? Pretty shoddy, and I'll send this over to them. I now have all the front hardware I can now return... I did use the Napa eclipse Calipers, Napa pads and rotors, so we'll see how those treat me... Not too expensive. The fsm does show the pad support plates on br-33 backwards I think. You'll get some squealing that way....

 

[benjrblant]

Most (respectable) shops should start recommending a pad replacement with 2-3mm or less of pad material remaining. It would take some serious, serious miles to grind through the steel backing plate. There's no way your rear brakes were "checked out" by anyone. Not within the last 80k miles at least.

 

[Clint0511]

Most (respectable) shops should start recommending a pad replacement with 2-3mm or less of pad material remaining. It would take some serious, serious miles to grind through the steel backing plate. There's no way your rear brakes were "checked out" by anyone. Not within the last 80k miles at least.

I agree. I was kinda wondering if anyone has had issues with really bad pad wear in the back... I did add an ome lift right after this, so that could have messed with the lspv (there was a post about this that surfaced the other day). I'll be checking the pads myself in about 5k miles. Also, found it funny just how tiny the rears are compared to the fronts.

 

[Malleus]

My front pads/rotors wear considerably more than the rear. But I also don't use them unless there's no one in front of me

 

[BILT4ME]

My RR has given me issues for the past 3 years. It tends to wear quickly and looks like a stuck caliper. I installed new pads (Powerstop) and it ate through the one pad on the RR only in 3000 miles. I replaced the caliper and did it again, only to find that corner is STILL giving me issues. I have new SS braided soft lines (Slee) on all soft line connections. I have no crimped lines. I'm not sure if it is the LEFT one NOT working, or the RIGHT one sticking. Either way, I blame the LSPV........

My ABS is disabled due to no tone rings on the front axles.

However, I could (and can) FEEL it pull to the RR when I brake hard. I don;t know HOW anyone can have a rotor or caliper in THAT condition and NOT hear or feel it.

Years ago, I saw a woman drive a 1978 Chevy full size Blazer into the shop and claim that her brakes "Just started making noise this morning"...... The RF rotor was nothing but the cooling fins between the wear surfaces, and there were NO pads remaining. It was caliper piston and caliper directly on rotor. I have no idea how she was even able to stop.

 

[BILT4ME]

My front pads/rotors wear considerably more than the rear. But I also don't use them unless there's no one in front of me

So..... You don't use them when someone IS in front of you and only use them when no one is in front of you?


Throw the cow over the fence some hay.

 

[Clint0511]

Oh, I noticed it making noise, once the pad wore through the brake material. I think on the way home from about a 50 mile drive is when the pad fell between the shield and rotor, and after some braking, the caliper piston just got jammed against the rotor. But also, there were no wear indicators visible. Not sure if they just didn't install them or they fell out. Nice sumitomo pads were in there, at least.

 

[Clint0511]

My RR has given me issues for the past 3 years. It tends to wear quickly and looks like a stuck caliper. I installed new pads (Powerstop) and it ate through the one pad on the RR only in 3000 miles. I replaced the caliper and did it again, only to find that corner is STILL giving me issues. I have new SS braided soft lines (Slee) on all soft line connections. I have no crimped lines. I'm not sure if it is the LEFT one NOT working, or the RIGHT one sticking. Either way, I blame the LSPV........

My ABS is disabled due to no tone rings on the front axles.

However, I could (and can) FEEL it pull to the RR when I brake hard. I don;t know HOW anyone can have a rotor or caliper in THAT condition and NOT hear or feel it.

Years ago, I saw a woman drive a 1978 Chevy full size Blazer into the shop and claim that her brakes "Just started making noise this morning"...... The RF rotor was nothing but the cooling fins between the wear surfaces, and there were NO pads remaining. It was caliper piston and caliper directly on rotor. I have no idea how she was even able to stop.

Any thoughts on unhook in your soft lines and blowing out your hard lines and lspv valve? How do you like the braided hoses?

 

[Malleus]

So..... You don't use them when someone IS in front of you and only use them when no one is in front of you?


Throw the cow over the fence some hay.

Isn't the car at the stop light there to stop you? I thought that was what my bumper was there for

 

[BILT4ME]

Any thoughts on unhook in your soft lines and blowing out your hard lines and lspv valve? How do you like the braided hoses?

Not a bad idea. I hadn't thought about it that I may actually have debris in the line causing this. I was thinking maybe I had air in the lines on the LEFT one and it was the right one that is actually working.

I think I'll try your suggestion.

Thanks!