Where can I find... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

toddtheodd · 03-24-2010, 05:27 PM

...original style brake rotors for my 72 c10?
I'm talking about the ones that have the groove in them, both inside and outside.

Is it possible to find these anymore? Or are they all smooth now?

**michael bustamante** · 03-24-2010, 06:23 PM

I just converted to 5 lug on my 67 (72 front end) and they have grooves in the rotor. I thoughthey just wore the pads down at one time

whats the groove for?

killer71 · 03-24-2010, 07:49 PM

i have a set in storage!

**truckdude239** · 03-24-2010, 08:45 PM

mine have a groove in them i thought ti was cause someone wore the pads out

flashed · 03-24-2010, 08:59 PM

My truck (72) has one of each.

oldblue1968chevy · 03-24-2010, 09:54 PM

are they worth something? i junked mine thinking they were shot..

Tx Firefighter · 03-24-2010, 10:45 PM

They superceded them to the smooth rotors way back in the 70s. I'd bet you're out of luck trying to find some on the shelf anywhere.

justcuz · 03-24-2010, 10:49 PM

That singular groove in the rotor was the wear limit indicator! If you junked them you threw away a perfectly good rotor. When those rotors had been turned to when the groove disappeared is when they were beyond using because they were too thin.

toddtheodd · 03-24-2010, 10:57 PM

No... I'm not junking them. Just putting them on the shelf to save them as a momento or something.
The driver's side one is warped pretty bad, and I'm pretty sure that turning it would go past the wear limit.

I was wanting to replace them with brand new ones that looked the exact same.

I have decent pads on the truck now, but I'm pretty sure that replacing the rotors with new smooth type, but not replacing the pads would cause problems, since the pads have a ridge matching the groove, and that would have to be worn down before the total pads were making contact with the rotor.

ERASER5 · 03-24-2010, 11:24 PM

Quote:

Originally Posted by justcuz

That singular groove in the rotor was the wear limit indicator! If you junked them you threw away a perfectly good rotor. When those rotors had been turned to when the groove disappeared is when they were beyond using because they were too thin.

Ding ding! We have a winner!

justcuz · 03-25-2010, 04:03 PM

Todd I was telling oldblue he junked a good set of rotors. The pads with grooves in them will wear in pretty quick if you put plain rotors on. If your not comfortable with that new pads are fairly cheap.

hayhauler71 · 03-25-2010, 08:36 PM

If your trying to make them look oe, I put a set on the brake lathe at work and put the groves in a new set of rotors. Also found out that after installing the new pad and tightened down the tabs on the outside pad, that groove gives some stability to the outboard pad to prevent vibration.

03-24-2010, 05:27 PM	#1
toddtheodd The oddest Todd around Join Date: May 2004 Location: Miami, Florida Posts: 1,418	Where can I find... ...original style brake rotors for my 72 c10? I'm talking about the ones that have the groove in them, both inside and outside. Is it possible to find these anymore? Or are they all smooth now? __________________ "The greatest pleasure is to vanquish your enemies and chase them before you, to rob them of their wealth and see those dear to them bathed in tears, to ride their horses and clasp to your bosom their wives and daughters." Ghengis Khan IIOY???

03-24-2010, 06:23 PM	#2
michael bustamante Registered User Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,843	Re: Where can I find... I just converted to 5 lug on my 67 (72 front end) and they have grooves in the rotor. I thoughthey just wore the pads down at one time whats the groove for? __________________ 1967custom

03-24-2010, 07:49 PM	#3
killer71 Registered User Join Date: May 2006 Location: at work Posts: 2,552	Re: Where can I find... i have a set in storage! __________________ R.I.P. Killer 71 10/26/07

03-24-2010, 08:45 PM	#4
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,230	Re: Where can I find... mine have a groove in them i thought ti was cause someone wore the pads out __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

03-24-2010, 08:59 PM	#5
flashed Registered User Join Date: Oct 2009 Location: canton ga Posts: 12,728	Re: Where can I find... My truck (72) has one of each.

03-24-2010, 09:54 PM	#6
oldblue1968chevy Grandpa in the rustmobile... Join Date: Nov 2008 Location: Spokane WA/Viola TN Posts: 11,422	Re: Where can I find... are they worth something? i junked mine thinking they were shot.. __________________ John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4

03-24-2010, 10:45 PM	#7
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Where can I find... They superceded them to the smooth rotors way back in the 70s. I'd bet you're out of luck trying to find some on the shelf anywhere. __________________ I'm on the Instagram- @Gearhead_Kevin

03-24-2010, 10:49 PM	#8
justcuz Registered User Join Date: May 2008 Location: Alta Loma, Ca. Posts: 930	Re: Where can I find... That singular groove in the rotor was the wear limit indicator! If you junked them you threw away a perfectly good rotor. When those rotors had been turned to when the groove disappeared is when they were beyond using because they were too thin. Last edited by justcuz; 03-24-2010 at 10:49 PM.

03-24-2010, 10:57 PM	#9
toddtheodd The oddest Todd around Join Date: May 2004 Location: Miami, Florida Posts: 1,418	Re: Where can I find... No... I'm not junking them. Just putting them on the shelf to save them as a momento or something. The driver's side one is warped pretty bad, and I'm pretty sure that turning it would go past the wear limit. I was wanting to replace them with brand new ones that looked the exact same. I have decent pads on the truck now, but I'm pretty sure that replacing the rotors with new smooth type, but not replacing the pads would cause problems, since the pads have a ridge matching the groove, and that would have to be worn down before the total pads were making contact with the rotor. __________________ "The greatest pleasure is to vanquish your enemies and chase them before you, to rob them of their wealth and see those dear to them bathed in tears, to ride their horses and clasp to your bosom their wives and daughters." Ghengis Khan IIOY???

03-25-2010, 04:03 PM	#11
justcuz Registered User Join Date: May 2008 Location: Alta Loma, Ca. Posts: 930	Re: Where can I find... Todd I was telling oldblue he junked a good set of rotors. The pads with grooves in them will wear in pretty quick if you put plain rotors on. If your not comfortable with that new pads are fairly cheap.

03-25-2010, 08:36 PM	#12
hayhauler71 Registered User Join Date: Aug 2009 Location: St. Paul MN. Posts: 1,996	Re: Where can I find... If your trying to make them look oe, I put a set on the brake lathe at work and put the groves in a new set of rotors. Also found out that after installing the new pad and tightened down the tabs on the outside pad, that groove gives some stability to the outboard pad to prevent vibration.

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