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07-09-2023, 08:00 PM
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#1 |
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Senior Member
 Join Date: Jan 2013
Location: 3,018 feet above the SoCal/Mojave Desert region.
Posts: 360
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Never seen this brake combo.
Just got the truck like 2 weeks ago or so. So I'm just doing a look over and decided to change the brake calipers. Never seen this rotor/pad combo before. I even searched on line and found no such thing. Both sides and both rotors are the same.
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07-09-2023, 08:14 PM
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#2 |
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Registered User
Join Date: Jan 2003
Location: Safford,AZ
Posts: 3,613
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Re: Never seen this brake combo.
Looks stock 71/72
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07-09-2023, 08:25 PM
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#3 | |
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Senior Member
Join Date: Jan 2013
Location: 3,018 feet above the SoCal/Mojave Desert region.
Posts: 360
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Re: Never seen this brake combo.
Quote:
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07-09-2023, 08:29 PM
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#4 |
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Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,217
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Re: Never seen this brake combo.
Looks just like my 72
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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07-09-2023, 08:37 PM
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#5 |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,163
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Re: Never seen this brake combo.
Factory had the grooved rotors. It helped with vibration (squeak) reduction.
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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07-09-2023, 09:38 PM
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#6 | |
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Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,217
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Re: Never seen this brake combo.
Quote:
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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07-10-2023, 12:46 AM
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#7 |
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Registered User
Join Date: Apr 2014
Location: California
Posts: 930
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Re: Never seen this brake combo.
Yes, my '72 C3500 has them with those grooves as well.
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07-10-2023, 08:52 AM
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#8 | |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,163
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Re: Never seen this brake combo.
Quote:
 You are probably right.
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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07-10-2023, 09:29 AM
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#9 | |
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Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,217
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Re: Never seen this brake combo.
Quote:
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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07-10-2023, 12:46 PM
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#10 |
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All about them K’s
 
Join Date: Jun 2014
Location: Farmington, New Mexico
Posts: 6,265
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Re: Never seen this brake combo.
Yep my K20 has them. I thought they were trashed when I first looked at the rotor, then I noticed they were machined like that.
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 
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07-10-2023, 01:01 PM
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#11 |
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Registered User
Join Date: Jun 2014
Location: Mocksville, NC
Posts: 1,741
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Re: Never seen this brake combo.
As others have stated, this is stock. My 72 rotors were the same. It makes it kind of a pain to get the pads out after they have worn into the groove. If you get the rotors machined, make sure to let the machinist know this is stock. I've seen where they try to machine the rotor until the groove is gone and then you are left with rotors destined for the scrap pile! I had mine machined by an old school machinist and they are smooth as can be and still have the groove.
__________________
Builds: Green Gus the 68 C10 ; Sullii the 72 1500 - Instagram: @dr.hewitt - C10 Concept/Development Photos: Master Thread |
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07-10-2023, 03:37 PM
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#12 |
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Senior Member
Join Date: Jan 2016
Location: Sugar Hill GA
Posts: 368
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Re: Never seen this brake combo.
My '67 which had been converted to front disc by the PO had those too.
__________________
1967 C10 Step side 1970 AMX 390 1977 Datsun 280Z highly modified with '95 LT1 power |
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07-10-2023, 04:37 PM
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#13 |
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Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,166
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Re: Never seen this brake combo.
My 74 Chevelle is like that.
K
__________________
Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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