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X Drilled and Slotted Rotors

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Old Jan 5, 2014 | 10:42 AM
  #1  
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Default X Drilled and Slotted Rotors

Unfortunately, my Jeep has been sitting for a while and not getting any work done to it since we were moving and doing projects around the house, i've been neglecting the Jeep, but finally getting back to it and hoping to have it back on the road by spring time. Before I parked it I had the factory style rotors resurfaced, but since I didn't drive it and I didn't treat them with anything they are really rusted and pitted now. I was contemplating getting some cross drilled and slotted rotors for it. Any opinions or suggestions on what brand? Or should i just get some replacement factory style ones?

4Wheel parts has a deal on Power Stop brand ones (part # K2119). Anybody using these or have any experience?
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Old Jan 5, 2014 | 11:40 AM
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From: Franksville, Wi
Year: 1995
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I doubt your Jeep needs drilled and slotted rotors. I hear they eat up pads a lot quicker too.
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Old Jan 5, 2014 | 12:03 PM
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pretty unnecessary honestly
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Old Jan 5, 2014 | 01:16 PM
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Year: 1995
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I had PowerStop slotted and drilled rotors on a previous vehicle. replaced pads and rotors when I first bought it, that was the only time I ever did a brake job on the car. Drove the car for 5 years. On an XJ, them may be unnecessary, cause they are really meant for speed. But, they do have much better stopping power and better cooling.
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Old Jan 5, 2014 | 06:12 PM
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If anything you should upgrade the pads. The drill and slotted rotors have less material in them obviously which makes them more prone to warping as well as worse braking performance since there is less material for the brake pad to grab on to. Blank rotors with a good performing brake pad should do the trick.
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Old Jan 5, 2014 | 07:05 PM
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you want these

http://www.blackmagicbrakes.com/
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Old Jan 5, 2014 | 08:32 PM
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Originally Posted by kal1fornia
If anything you should upgrade the pads. The drill and slotted rotors have less material in them obviously which makes them more prone to warping as well as worse braking performance since there is less material for the brake pad to grab on to. Blank rotors with a good performing brake pad should do the trick.


So what your saying, I should replace the 4k dollar brake job on the race car from drilled and slotted to blanks and good pads? Nope, not going happen, we have ran these brakes for years and up to 200 mph on a road course and have yet to get a warped rotor even when the rotor was glowing red and orange.




I ran cross drilled and slotted rotors with ceramic pads on my last jeep and could notice a difference. I mostly drove that jeep at high speeds and fast braking. First thing was that they get rid of the brake dust a lot better and it doesn't build up on the wheels. Second was that there was little to no brake squeaking when stopping. And the brakes ran a lot cooler and never had any brake fade. I used to get the fade a lot on the blanks and good pads.

Last edited by XJ-92; Jan 5, 2014 at 08:37 PM.
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Old Jan 5, 2014 | 08:47 PM
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It's a little overkill to get slotted and drilled rotors on a jeep but if that's what you want, go for it. Whatever makes you happy.
On a second note, don't listen to kali... whatever his name is. He doesn't know what he's talking about. Slotted and drilled rotors vent and dissipate heat better, which prevents warping and brake fade.
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Old Jan 5, 2014 | 08:51 PM
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You really want to get crazy cross drill your drums. Have seen it only once, one of the rigs that made readers rigs in 4 wheeler, believe it was an old 68ish bronco. All 4 were drilled.
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Old Jan 5, 2014 | 08:53 PM
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Originally Posted by 93XJLI
I agree.

Big tires, winches, heavy bumpers, and extra miscellaneous junk usually found on lifted vehicles and it should be a no brainer to upgrade the rotors and pads at the very least imho.
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Old Jan 5, 2014 | 09:55 PM
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Originally Posted by XJ-92
So what your saying, I should replace the 4k dollar brake job on the race car from drilled and slotted to blanks and good pads? Nope, not going happen, we have ran these brakes for years and up to 200 mph on a road course and have yet to get a warped rotor even when the rotor was glowing red and orange.




I ran cross drilled and slotted rotors with ceramic pads on my last jeep and could notice a difference. I mostly drove that jeep at high speeds and fast braking. First thing was that they get rid of the brake dust a lot better and it doesn't build up on the wheels. Second was that there was little to no brake squeaking when stopping. And the brakes ran a lot cooler and never had any brake fade. I used to get the fade a lot on the blanks and good pads.
Obviously a $4k brake system is going to be great quality but most people don't buy that, instead they buy cheap drill slotted rotors and that is what happens. I highly doubt anyone with common sense is going to put a $4k brake system on their cherokee.
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Old Jan 5, 2014 | 10:00 PM
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Originally Posted by XJ Mayhem
It's a little overkill to get slotted and drilled rotors on a jeep but if that's what you want, go for it. Whatever makes you happy.
On a second note, don't listen to kali... whatever his name is. He doesn't know what he's talking about. Slotted and drilled rotors vent and dissipate heat better, which prevents warping and brake fade.
The point I am trying to make is no one is going to be doing repeated heavy braking in an XJ, it's not a race car. So when the one time comes for an emergency stop a good set of blank rotors and pads will do the job. When coming to a stop a blank rotor will give better braking than a drill/slotted. There is less material for the pad to grab, it's not rocket science.
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Old Jan 5, 2014 | 10:08 PM
  #13  
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Drilled and slotted rotors allow the gases from the pads to escape and will result in better braking. If you have the extra money to burn, go for it.
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Old Jan 5, 2014 | 10:43 PM
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Year: 1991
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Originally Posted by janowski96
Unfortunately, my Jeep has been sitting for a while and not getting any work done to it since we were moving and doing projects around the house, i've been neglecting the Jeep, but finally getting back to it and hoping to have it back on the road by spring time. Before I parked it I had the factory style rotors resurfaced, but since I didn't drive it and I didn't treat them with anything they are really rusted and pitted now. I was contemplating getting some cross drilled and slotted rotors for it. Any opinions or suggestions on what brand? Or should i just get some replacement factory style ones?

4Wheel parts has a deal on Power Stop brand ones (part # K2119). Anybody using these or have any experience?

I have Power Stop slotted rotors on my Ram 2500 4X4 and they seem to be a good quality part. There about 7 years old and no warping, cracking or problems of any kind. Brake pads last a lot longer with these rotors compared to the stock rotors.

From my experience (with my daily driver 91 XJ) the drilled and slotted "Roto-Tech" rotors (nothing special, about $38.00 ea. at the time) and some ceramic brake pads from NAPA work awesome!!! They have been on for almost 3 years now and I have nothing but good to say about the combination. It doesn't see much off road, but I drive my XJ hard on the street and braking is solid and safe at any speed! Absolutly no brake fade ever, hot, cold, whatever, and excelant braking in deep water, and no noticeable pad or rotor wear at all.


Dennis

Last edited by AMXJ; Jan 5, 2014 at 10:55 PM.
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Old Jan 5, 2014 | 10:58 PM
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Everyones input and opinions greatly appreciated. I'm really new to Jeeps so any input or advice is always appreciated. Many great points and ideas mentioned here for sure. When I was originally going to replace the pads and resurfaced the front rotors before they became all rusted and pitted I was just going to run some EBC green pads and call it good, now i'm in this predictament on what to do. I already have the pads, they just need to be installed. I heard that the EBC green pad are a good offroad pad. Anybody use those before?

I agree with that when you start adding weight and armor to our jeeps more stopping power is needed in theory, but i've always heard that being more accurate with race cars and fast speeds. I didn't think it would have that much of an impact offroad going up and over obstacles at slower speeds. I might be wrong.

If I didn't already have the EBC pads I would definitely consider the Black Magic pads, but those are pretty spendy considering I already bought some. I might just get some blank rotors for now and see how it goes, plus they are cheaper.
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