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Author Topic: GMT800 to GMT900 Brake Upgrade w/pictures  (Read 154627 times)

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qreaigh

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #200 on: 07/29/17 11:13 AM »

I just ordered from rock auto rotor brake caliper kit to do the GMT900 upgrade and I was looking at the calipers and they only have one piston.  I thought they would have two pistons. I ordered for an 08 Tahoe 5.3l v8 Part number PWR KCOE2083.

Upon further research of my order the ones I ordered was listed under daily driver and the Premium kit seems to have two pistons on the rotor.

Is there going to be a big difference between having one or two pistons on the caliper or is just having a larger rotor going to make a difference?

Trying to decide if I want to return what I have and get the Premium Kit.

 


 :E: I solved my own problem I ordered rear by mistake  :E:
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ygmn

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #201 on: 07/30/17 04:53 AM »

2 piston better than one as provides better pressures against pads over larger area of 2 pistons
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Maniac

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #202 on: 11/23/17 04:05 AM »

Anyone know if classic pad fit with police package? what is the difference between? shape are different or is just the component?
 :thumbsup:
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redheadedrod

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #203 on: 11/23/17 09:10 AM »

Police package just had thicker pads. Caliper has longer travel to handle thicker pads. No real benefit to them other than longevity from what I have seen.

(My Caprice was a police car and going with better quality rotor and pads outweighed having the thicker pads. And the police calipers were far more expensive since they were of much lower demand. )

Others may have different opinions but that is what my experience has been.

Rodney
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MS03 2500

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #204 on: 11/25/17 09:01 PM »

I would never ever use a police brake parts. The pads are severe duty and wear out the rotor.
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redheadedrod

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #205 on: 11/26/17 06:43 AM »

I would never ever use a police brake parts. The pads are severe duty and wear out the rotor.

Depends on the configuration.
In some cases they get upgraded rotors too but I have also (rarely) seen ceramic police pads as well. But generally when you get non-ceramic pads you get a pad that dusts like crazy and MAY wear out the rotor faster depending on how abrasive the material is. Better stopping, the more abrasive generally.

Realistically if you have the GMT800 system the police found that ONE panic stop from 100+ mph was enough to warp the rotors. This is a major reason why GM went to the bigger rotors of the GMT900.

Also if your looking for the best setup, get the best quality pads/rotors you can afford. The police units are more expensive because they are rare, not because they are better. You can get much better stopping qualities with better quality components.

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Maniac

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #206 on: 11/27/17 01:55 AM »

Thanks Dude,

in fact my question concern the shape of the pads, if a pad non-police can fit with a police caliper? if I look in summit shop, their pads are not described police or regular pads

 ???

My calipers are  RC11713P and RC11714 P, without spreading finger
« Last Edit: 11/27/17 02:30 AM by Maniac »
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redheadedrod

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #207 on: 11/27/17 11:26 AM »

Thanks Dude,

in fact my question concern the shape of the pads, if a pad non-police can fit with a police caliper? if I look in summit shop, their pads are not described police or regular pads

 ???

My calipers are  RC11713P and RC11714 P, without spreading finger

If you compare police and non-police models you should see the pad is thicker on the police model. That SHOULD be the only difference.
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JVZL1

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #208 on: 11/28/17 07:06 PM »

  The police package calipers also have upgraded seals on the pistons.
For taking the heat for less fade.

« Last Edit: 04/13/18 12:31 PM by JVZL1 »
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Blazerteam

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #209 on: 04/11/18 01:35 PM »

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Vaeagleav

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #210 on: 04/11/18 03:18 PM »

Blazerteam that looks like a complete kit but I don't see where it mentions which generation AV it is for? My guess is you need to make sure you order the kit for a 2007-2013 AV to get the best stopping power since the whole idea of this thread is to get the larger brakes of the second generation onto the 2002-2006 AV.
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ohiobellboy

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #211 on: 04/11/18 05:18 PM »

Is this all i need to upgrade mye 2003 Z71?.https://www.rockauto.com/en/moreinfo.php?pk=6540420&cc=1440984&jsn=514
I think you want this one.
https://www.rockauto.com/en/moreinfo.php?pk=4752018&cc=1433406&jsn=495

Should go ahead and change the rubber hoses while you're at it and have everything apart.
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Z66Modder

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #212 on: 04/11/18 11:16 PM »

Sure am glad I did this. Today I had a sudden braking on wet pavement and thought for sure I'm gonna smash the guy in front of me. The ABS kicked in, but fortunately I stopped with several feet to spare. Would have crushed his bumper for sure with the factory setup.
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Blazerteam

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #213 on: 04/12/18 07:48 AM »

Blazerteam that looks like a complete kit but I don't see where it mentions which generation AV it is for? My guess is you need to make sure you order the kit for a 2007-2013 AV to get the best stopping power since the whole idea of this thread is to get the larger brakes of the second generation onto the 2002-2006 AV.

This is for a 2008,so my concern where the bracket for the calipers,if it where the right one for my 2003.
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Z66Modder

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #214 on: 04/12/18 09:53 PM »

http://www.chevyavalanchefanclub.com/cafcna/index.php?topic=122524.msg1991312#msg1991312

Look back at the thread when I did my 02, you will see what you need.
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FishHawkAvy65

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #215 on: 05/27/18 11:45 AM »

This looks like it will fit - shipped at $233.42 through Amazon
Power Stop (KC2069) Z23 Evolution Sport Brake Kit with Calipers, Front

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qreaigh

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #216 on: 05/27/18 11:48 AM »

Make sure you also get caliper bracket.
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FishHawkAvy65

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #217 on: 05/27/18 12:07 PM »

I see what you mean - I don't think it comes with brackets.
Maybe KC2069-36
Wait - I think it does...
I sent an email to power stop for clarification - still no response...
The price went up to $399 overnight, I guess if  you snooze you loose......
« Last Edit: 05/30/18 07:56 AM by FishHawkAvy65 »
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FishHawkAvy65

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #218 on: 06/15/18 11:27 AM »

I just completed the upgrade with no snags so far. My brakes were in good shape and I was surprised at how well the the big girl stopped so I was hesitant to put money toward something that might be a marginal increase, but.....
THIS WORKS!  :thumbsup:
I can really feel a nice increase in stopping power.
I used an affordable set up from Callahan Brakes. Drilled and slotted rotors, rebuilt GM calipers (no powder coating), and ceramic pads.
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Z66Modder

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #219 on: 06/15/18 09:47 PM »

Yep, kept me out of the adjusters office more than once.
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buickwagon

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Re: GMT800 to GMT900 Brake Upgrade w/pictures
« Reply #220 on: 08/05/18 06:35 PM »

Thanks to those who went before. I did the front brake upgrade today, used the Powerstop kit for an 07 Tahoe from Rockauto. Painless.



Now if only I could get the parking brakes to hold...  :E:
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