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05-16-2014, 01:59 AM
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#1 |
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Registered User
Join Date: Dec 2013
Location: Portland, Ore.
Posts: 348
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brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
My pop did the swap some years back and I'm trying to rustle up parts for a freshen-up.
I'm told they (mcgaughy's) use the 79-86 pads, rotors, calipers, and hoses---is this right? The truck also has a manual big block corvette master cylinder from the same company. Any idea what year parts i need to order? Basically the truck sat for a couple years and our climate here in the PNW kills dot 3 if it sits. Rust water doesn't work so great as a hydraulic fluid. Any help is appreciated. |
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05-16-2014, 09:13 AM
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#2 |
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Registered User
Join Date: Dec 2013
Location: Portland, Ore.
Posts: 348
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Re: brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
doh, this is on a '66 C-10
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05-16-2014, 01:59 PM
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#3 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,068
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Re: brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
Wish I could offer insight but I've never used McGaughys stuff. My bet is the parts will be based on 73-80's 1.25" HD option. Post-80 thru 87 could be Lt duty or HD. Measure the thickness of the rotor & that will tell you.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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05-20-2014, 06:31 PM
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#4 |
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I'm just glad to be here!
Join Date: Jan 2008
Location: Longview, TX
Posts: 4,788
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Re: brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
with the 6 lug rotors, you might need to talk to a McGaughy dealer for the rotors...
__________________
Karl  1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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05-20-2014, 06:51 PM
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#5 |
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67-72 parts collector,…
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,700
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Re: brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
All 6-lug aftermarket conversion rotors are the 1-1/4" width.
71-80 HD brake parts will work.
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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05-30-2014, 10:56 AM
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#6 |
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Registered User
Join Date: Dec 2013
Location: Portland, Ore.
Posts: 348
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Re: brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
get this, 11.5 diameter and 1.287 thick
i'm gonna get a new battery for my measuring stick and check again. |
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05-30-2014, 12:16 PM
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#7 |
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I'm just glad to be here!
Join Date: Jan 2008
Location: Longview, TX
Posts: 4,788
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Re: brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
Those are roughly the same measurements as a front rotor for a light duty 1990 Chevrolet C2500. Those years (1988-1996) the factory made a 6 lug light duty (7200 lb GVW) 3/4 ton truck that was 6 lug front and rear instead of the traditional 8 lug. The heavy duty 3/4 ton (8600 lb GVW) had the 8 lug set up...
This rotor on RockAuto.com is what in could be: CENTRIC Part # 12166012 C-TEK Standard Disc-Preferred Front; 11" Rear Drum; 7200lb GVW The picture of tied to that part number is a drawing with the dimensions listed. It shows a nominal thickness of 1.28" and an OD of 11.61". It uses the standared A3 outer bearing and the A5 inner bearing. Those are the same bearing used in the 1985 1/2 ton HD brakes. That just might be the correct rotor for your spindles.
__________________
Karl 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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05-31-2014, 12:22 AM
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#8 |
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Registered User
Join Date: Dec 2013
Location: Portland, Ore.
Posts: 348
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Re: brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
I sure appreciate the help! I'll pull the pads this weekend and get some proper numbers to go by. Got everything else but the pads and rotors for the front. I wanna get it all done between school ending and roofing season getting started.
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06-04-2014, 12:55 PM
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#9 |
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Registered User
Join Date: Dec 2013
Location: Portland, Ore.
Posts: 348
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Re: brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap
yikes, still struggling here
pulled the calipers and i'm 99% sure they are the venerable d52 bore diameter is ~2.95" and the mounting pins are ~7" apart on centers the rotors are in good enough shape to turn, so I can dodge that for now, although i think Aggie91 has found the right stuff on rock auto. another question, I've never used anything but stock type organic pads. I'm not all that concerned about dust, noise or maintenance, but the truck has manual brakes so modulation and stopping power are what I'm after. Any recommendations on pad mat'l? |
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