changing out brake rotors

[FordChic97]

so yesterday, i posted a question about changing out the brake pads of my '97 explorer, but when it comes to time for me to change out the rotors as well, how different is that from changing out the pads? and what kinds of signs do i need to look for to know when to change them?

 

[aldive]

Changing the rotors is just as simple as the pads; just a few more steps.

They need to be replaced when showing groves, cracks, or warpage. I do not recommend turning them.

Good luck ....

 

[dogfriend]

It depends upon whether your truck is 2wd or 4wd. For 2wd, you will have to remove and repack the front bearings as the front rotors are bolted to the hub. If it is 4wd, its much easier because the front rotors just slide over the wheel studs. On the back axle, the rotors also just slide over the wheel studs.

To replace the rotors, you remove the calipers just the same as you would to replace the brake pads. Then you have to remove the caliper mounting brackets which are bolted to the front spindle (or the rear axle for the rear). Then remove the rotor for 4wd or remove the front hub for 2wd.

Technically, you can have the rotors turned (retrued) as long as the thickness meets minimum spec after turning. I usually have the rotors turned one time (when I need to replace the pads), then replace them the next time I replace the pads. I have had no problems with turned rotors.

I also recommend buying a quality rotor, don't try to skimp on brake parts, its not the place to try to be cheap.

 

[BubbaFL]

I do not recommend turning them.

Why not?

 

[parad1mg]

i think 4WD and AWD explorers are easier to change? :scratch: anyways, mine was AWD and it was really easy.. you just need a can of PB blaster, a hammer, an adjustable strap to hang you caliper, breaker bar, thread lock (for the caliper bracket bolts and not on the slider ones..), brake cleaner, shop towels/rags, your usual set of tools for changing brake pads, time and patience and a good place to do this project..

if your rotors look anywhere near to this:

then i guess its time to replace them with these!!

i love my powerslot/hawk brake pads combo

 

[aldive]

Why not?

New age, relatively speaking, rotors do not have a lot of metal in them.

 

[dogfriend]

When you take the rotors to the machine shop to have them turned, the first thing the machinist will do (if he/she is competent) is to measure the thickness with a micrometer. They will then tell you if the rotors can be turned or not based on the minimum thickness that is cast or stamped into the rotor.

If the rotors are grooved or badly warped, then the machinist won't be able to turn them without going below the minimum thickness and they will tell you that they cannot be turned. Surface rust is not a big deal, but if they are badly rusted it is a good idea to replace them even if there is enough material remaining.