I'm having a hard time finding the correct caliper bracket bolts to fit the GXP style caliper brackets. The bolts that hold the brackets to the knuckles. Does anyone have a part number? They are different than the SSEI bolts

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The GM part number is 89047763.

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-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
2005 Town & Country Limited | Butane Blue Metallic | 290k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 210k | Official Bonneville Hauler

When I looked at the diagram, it looks like that part number holds the caliper to the bracket. The diagram isn't really representative of the part because those bolts look far longer than the ones actually used. Although, diagrams are sometimes misleading.

...

Asked the dealer, and of course, Andrew is correct with that number...

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Thanks Andrew, I ordered some from the GM dealer

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I know that part number because Ed snapped one years ago when doing a brake job on his GXP and had to get one at the dealer.

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-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
2005 Town & Country Limited | Butane Blue Metallic | 290k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 210k | Official Bonneville Hauler

It's scary to think one of these would snap!

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Bose Luxury Sound System w/Touch Screen Navigation, Addition of Factory XM, 2005 MY Antenna, OnStar Upgrade (3G),
RainSense Wipers, Backup Camera, '00 Style Door Panel Courtesy Lights, Heated Washer Solvent, 2X Remote Trunk Release,
Turn Signal Mirrors, Center Console Courtesy Lamp, Rear Outboard Heated Seats, PVD Chrome 18" Factory Rims, Upgraded
Carbon Fibre Appearance Interior Trim, Highly Modified Main Body Harness, Instrument Panel, Door, Door Panel & Headliner
Wiring Harnesses, Custom Fuse Box & Tire and Loading Information Decals, Additional Acoustic Insulation

Have you seen Ed? He could snap an axle with a 3/8" ratchet

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
2005 Town & Country Limited | Butane Blue Metallic | 290k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 210k | Official Bonneville Hauler

Note to self... Don't make Ed angry!

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Bose Luxury Sound System w/Touch Screen Navigation, Addition of Factory XM, 2005 MY Antenna, OnStar Upgrade (3G),
RainSense Wipers, Backup Camera, '00 Style Door Panel Courtesy Lights, Heated Washer Solvent, 2X Remote Trunk Release,
Turn Signal Mirrors, Center Console Courtesy Lamp, Rear Outboard Heated Seats, PVD Chrome 18" Factory Rims, Upgraded
Carbon Fibre Appearance Interior Trim, Highly Modified Main Body Harness, Instrument Panel, Door, Door Panel & Headliner
Wiring Harnesses, Custom Fuse Box & Tire and Loading Information Decals, Additional Acoustic Insulation

I don't know how else I would have found any without Andrew. I bought my Father a GXP caliper set, then got a set for mine from an SRX and "borrowed" the bracket bolts from his set , now he's ready to install his and come to find out I couldn't find the bolts anywhere. Well, the new bolts should be in tomorrow now

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I snapped one off when replacing the front rotors on my '05 GXP a few years back. It was 8 at night and the car was in my friends garage...so we needed something to finish and get the car out. Went to Menards and found the same bolts for $2. Not sure if they are exactly the same in terms of strength and material, but they have held for at least 2 years now. If I find what the specs were, I will share them here.

...I should probably replace them with the correct part, eh? Thanks for the part number!

just check to see if the bolt has a stamped number on the head, if it an eight or an 5 you will be fine. Any number lower than five I would replace it.

I broke one. two summers ago replacing the front brakes on my GXP. although I think I was using half inch drive. Lol

Metric bolts are stamped with a number, SAE with a series of lines to represent the grade (3 lines = grade 5, 6 lines = grade 8).

Metric bolts (used on these cars) are graded by class. Metric class 8.8 is close to SAE grade 5; class 10.9 is close to grade 8. Whatever is stamped on the bolt that came off is the minimum you want to put back on. On a braking and suspension components I would expect to find class 10.9 (grade 8) hardware, but there are exceptions.

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Blow all the things! Wait, I meant boost. Boost!


The Fleet:
'93 SSEi - Twincharged + manual Build thread
'97 Camaro - Top swap
'05 STS - V8, AWD, her DD
'92 Trofeo - Fair weather DD
'84 Sierra Classic - Twin turbo 3800
'97 LeSabre - Top swap

Current project:
'99 Montana - top swap 3800

Upcoming projects:
'92 Bonneville SSE
'87 LeSabre T-type
'67 LeSabre

RIP:
'86 LeSabre - pictures
'93 SE - L67

Thanks for the info! Looked in my toolbox and found the leftover one. Here's the full info in case anyone needs one in a pinch (literally what it says on the package):
The bolt head is marked with W.T 10.9, so it seems I lucked out and bought the correct grade...I feel safer now