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Old 10-25-2009, 10:28 PM   #11
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Quote:
Originally Posted by GXP Venom View Post
I understand the frustration, I answered you once in your other thread/same topic. I know the two pins and bolts. The one pin has 1 groove, the other two. And one bolt has a wider collar. But having only done the front brakes once. I dont remember the order. I cant believe the Parts computer doesnt have the xploded view differientaiting them. I have a GM Parts Tech on Staff and sent him a PM to try and help. Another way may nbe to take it to NAPA and ask them. THey may have the pins listed as upper/lower? Or have a complete caliper to view. I will let you know what TL comes up with when he logs in. Most members here dont realize the BIG differences in brake and suspension parts.


I know you tried to help in the other post, which is why I answered that question in my first post here. the gm computer at the gm parts counter at the gm dealership does NOT TELL WHICH goes where. it is a diagram that shows 2 of the same bolts, I actually called 3 gm dealerships after the 1st dealership that I actually bought the parts from showed me the diagram. gm makes 2 different pins and doesn't give any info as to which goes where.

As for napa I called them for the bolts, and they said they just have a caliper kit where everything is included. I will call back and see what they say about the pins, but I would be willing to bet that it isn't oem and might be different types of pins. but I will cal tomorrow.
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Old 10-25-2009, 10:49 PM   #12
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I swapped the originals with the NAPA ceramics. Unlike alot of auto parts stores. NAPA does know the differences in the trim models and does carry direct replacement parts for the GXP. If they have one listed for it, I am sure it will be the same. TL works for GM Parts and may by able to figure it out by the different parts numbers the pins/bolt kits use. If these fail, I will pull a wheel for you and tell ya. I do remember the difference and thought it queer. It may be they were reversed when you got it and why you had the problems to begin with.
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Old 10-27-2009, 08:00 PM   #13
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no luck at napa or gm. this is some bull. I can't believe the ammount of crap I had to deal with for this brake job.
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Old 10-28-2009, 02:53 AM   #14
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try to find a service manual. not a Chiltons, or a Haynes, but a real service manual, thats what the mechanics would refer to if they got lost
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Old 10-28-2009, 09:42 AM   #15
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One of our gearheads (2001SCBONNE) found this:

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Originally Posted by 2001SCBONNE View Post
So I look on Auto Zone for pics of the calipers etc. I figured that if there is a loaded caliper close I would go look at one in person. I ended up registering for their service info for an 05 GXP
Look what I found
The upper caliper pin bolt, has a bushing as part of the bolt.
The lower caliper pin bolt, is of a solid design.

I think this what we are looking for.
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Old 10-28-2009, 10:50 AM   #16
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Nice find 2001SCBONNE. Here a pic of the pins/bolts:


So the right one in the picture is the upper one, the left the lower.

Dan found a pic that shows the top pin with a little something extra, but it'* a drawing and wasnt 100% sure if it because the pin heads aren't quite the same as the GXP ones.



Great job of sleuthing on both Gearhead'* efforts.
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Old 10-28-2009, 10:53 AM   #17
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Just so anyone who reads this knows. We are working on a write up for this, but with conflicting information in service manuals, we want to make 100% sure we have it correct.
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Old 10-28-2009, 11:07 AM   #18
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I about convinced Dan. Your drawing doesnt clearly show that "bushing tip" to be the same as the real picture, but it is definitely different than the lower. Now it'* raining here again. If I ever get some "Indian Summer" here, I'll go through the writeup and correct anything. I am waiting to hear from a friend with a tire machine in his barn, for a day to put the new snow tires on. Can always do it then.
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Old 10-28-2009, 11:10 AM   #19
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I thought that was a threaded end, but now that I look again it does match the information we gathered from like 4 different places/manuals, as well as different cars. We'll get this.
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Old 10-29-2009, 08:45 PM   #20
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you guys are awsome, thanks I will try this sunday and see how it goes.
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