Problem with rear brakes
Problem with rear brakes So I'm almost done installing my brakemotive rotors and pads for the front and rear. I got the fronts done then went to do the rears and ran into a little problem.
When the rotor is removed, the axle spins freely. But when I put on my drivers side rotor and try to spin it, it catches and makes a grinding sound. I made sure my e-brake wasn't engaged. The bracket nor caliper aren't even on and it is still making a grinding noise. Is this normal?
When the rotor is removed, the axle spins freely. But when I put on my drivers side rotor and try to spin it, it catches and makes a grinding sound. I made sure my e-brake wasn't engaged. The bracket nor caliper aren't even on and it is still making a grinding noise. Is this normal?
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Grinding sound is not normal...
Look for broken or loose pieces inside axle... rotate the differential while looking for damage/loose.
If you see no breakages or loose parts, can you determine if the grinding sound is coming from the inner (differential bearings) or outer (axle bearings) parts of the axle.
( you said the rotor is removed... so therefore the parking brake cannot be involved ).
Look for broken or loose pieces inside axle... rotate the differential while looking for damage/loose.
If you see no breakages or loose parts, can you determine if the grinding sound is coming from the inner (differential bearings) or outer (axle bearings) parts of the axle.
( you said the rotor is removed... so therefore the parking brake cannot be involved ).
The grinding sound only occurs when the rotor is on. When its off, it spins freely with no noise. When the rotor is on, it can make 3/4 of a rotation then it catches and grinds, then goes back to smooth once I spin it more, then catches on the same spot again.
Trending Topics
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Oh, sorry, I misunderstood, I don't know how I failed to read, please disregard my previous comments...
if rotor is on and your hear a noise, the parking brake shoe could be dragging the rotor's inside surface (where the parking brake shoe normally rides on)...
there is an adjuster which allows you to contract the parking brake shoe so it does not rub the rotor.
if rotor is on and your hear a noise, the parking brake shoe could be dragging the rotor's inside surface (where the parking brake shoe normally rides on)...
there is an adjuster which allows you to contract the parking brake shoe so it does not rub the rotor.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
With the rotor removed you will see the single-piece parking brake shoe wrap all the way around...
at the bottom (where the parking brake shoe ends come together) you will see a cylindrical (sort of) looking device (the parking brake shoe ends touch each end of this), on one end is the star wheel;
by turning the star wheel you can contract the parking brake shoe (I don't remember which way to turn it).
at the bottom (where the parking brake shoe ends come together) you will see a cylindrical (sort of) looking device (the parking brake shoe ends touch each end of this), on one end is the star wheel;
by turning the star wheel you can contract the parking brake shoe (I don't remember which way to turn it).
I ended up just not messing with it. Got the brakes on tonight. Can't hear a rubbing noise when I drive so I'm not gonna worry about it. I think it prob rubbed away at the metal and it's good now. Thanks for the help. If it's still an issue in the future I'll know how to resolve it.
