rotors

[turiegas]

I need to replace my rotors--I have no idea how to remove the front rotors. PLEASE HELP!!

[turiegas]

I have a 2000 Jeep Grand Cherokee - 2wd

[JDPascal]

To replace the front rotors, you need to remove the calipers.
DONOT LET THE CALIPER HANG BY THE HOSE.

Once the rotors are replaced, torque the wheel nuts to the specified torque for the vehicle or you rise early failure of the rotors due to warping.

Best you invest in a manual of some sort if you are going to undertake work where safety is a high priority.

JD

[ByronP]

JD's right, a Haynes or Chilton manual will only cost you 10-15 bucks and will provide some helpful information about the most common repairs. I'm not too familiar with the newer Grands but there should be a couple of bolts holding the caliper on. Once that is loose you can swing it up out of they way so you can get at the rotor.
ByronP

[xj31]

Get used to it.Those rotors warp all the time and you will be changing them a lot.I'm a tech at a jeep dealer and that is one of our most common problems.Chrysler tried fixing it with new calipers but that did nothing.You might want to check with a dealer because they warranty a lot of those for a long time.

[glennco1]

Is the issue here the size of the rotors for the weight of the vehicle?

[xj31]

i wish i knew.chrysler cant even figure it out.and they spent a lot of money trying.they tried blaming it on the calipers and came out with a new design but it didnt fix squat.some of these things come in with 3000 miles and the brakes pulsate so bad i dont know how the people drive these things

[msrjeep]

you will need a 7mm (if my memory is correct) hex caliper bit to remove the caliper bolts. you should be able to get one at autozone, etc.

[JDPascal]

Originally Posted by glennco1

Is the issue here the size of the rotors for the weight of the vehicle?

In a way it is. The rotors are composite construction, with a solid cast wear ring and stamped steel center. One piece cast rotors with vents are more stable and cool better but add weight to the vehicle- and probably cost too. That makes them less desirable to the manufacturer.

The last set of front rotors lasted me 40k miles and 2 years. That was with religious attention to wheel bolt torque whenever I rotated the tires. I could have just changed the rotors but chose to replace the pads at the same time. I also replaced the calipers ($25 each) just for precaution sake and 110k miles on them.

JD

[msrjeep]

Hey JD, are there cast/vented rotors available to replace the stock rotors? i've never looked into it...

[JDPascal]

Originally Posted by msrjeep

Hey JD, are there cast/vented rotors available to replace the stock rotors? i've never looked into it...

Not that I know of. The best I can do is get the top line napa or wagner rotors. Thats short of going to the more expensive slotted ones.

Would be nice though. Maybe a cross over part if someone were to look close enough.

JD

[ShadMan]

I've seen a cross-drilled rotor somewhere for the JGC. I'm about to have to replace the rotors on my wife's, so I'll see if I can find the link again.

[msrjeep]

not cross drilled, vented discs. cross drilled rotors don't do much of anything but look neat. vented discs have channels in the middle of the disc that help dissipate heat better.

[msrjeep]

see how the disc has air space in the middle. that's a vented rotor.

rotors can be cross drilled where they just drill holes through the disc, slotted, where the cut slots across the contact area, and/or vented where air channels are cast into the rotor.

[ShadMan]

That's what I ws looking at. Do you know what those run or who makes them?