Disc Brake kits 8 lugs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69Rumbler · 02-08-2014, 07:51 PM

What kits are you guys using ?? For 8 lug disc brakes

ZombiePopper · 02-08-2014, 08:19 PM

I'm curious about this also (for the rear axle 4x4)

SS Tim · 02-08-2014, 08:57 PM

Front is a straight bolt on of factory parts up through 91 in some cases.

http://67-72chevytrucks.com/vboard/s...68&postcount=4

Rear discs are more of a problem. If you find a C20/30 kit with a real park brake and not a car rated caliper let me know.

**derotoreut** · 02-08-2014, 09:20 PM

Only did fronts on my C20. I researched both CPP and POL I decided to use Performance Online.

budnikguy · 02-08-2014, 09:22 PM

If you are speaking of front disc brakes, i have a complete swap out from a 71 3/4 ton that would do the job for ya..and I am local to you...

69Rumbler · 02-08-2014, 09:22 PM

How they working ... Any complaints ?

69Rumbler · 02-08-2014, 09:27 PM

Yea I am I just PM you !

Aussie Ol' Blue · 02-08-2014, 09:52 PM

I'm planning on doing this conversion as well but have heard that there is a difference in the bolt sizes between the disc and old drums. Is that actually the case? 70/c20

ZombiePopper · 02-08-2014, 10:30 PM

Quote:

Originally Posted by SS Tim

Rear discs are more of a problem. If you find a C20/30 kit with a real park brake and not a car rated caliper let me know.

This is what I've heard,
Anyone offer a rear disc kit for c or k 20's/30's?

72 K20 · 02-08-2014, 10:37 PM

Here's a couple of links that might help !
http://www.ruffstuffspecialties.com/...g/EHO5272.html

http://blackbirdscustomtrucks.com/index7.html

colgad · 02-08-2014, 11:27 PM

I used the BlackBird ones and the kit is simple to install. All bolt on.

**derotoreut** · 02-08-2014, 11:59 PM

Quote:

Originally Posted by colgad

I used the BlackBird ones and the kit is simple to install. All bolt on.

Did you use on front, rear or both? Curious about the rear. Thanks.

**jocko** · 02-09-2014, 12:09 AM

I'd like more details also! Pics, etc. Did ya go with the integral parking brake caliper? If so, any issues you might see with it holding a truck with a camper? Did you need to add an adjustable prop valve to balance front / rear - or was the factory distrib block ok?? (I assume you'd have to have an adj valve). Very interested.

Vintage Windmills · 02-09-2014, 10:48 AM

Heres one I put together myself on the Eaton HO52 using the brackets from NW fabworks. If doing again, I would find brackets with holes already in that allow the caliper to mount at the 3/9 o'clock position. I used 78 Eldorado calipers and its true they are from a car, but those cars were huge and weighed what, 5000 lbs? Compared to the smallish 11x2 that was stock on the eaton, I cant believe I lost much if any stopping power. Caveat is I haven't had it out on the road yet, but should in a couple days.

The calipers are the same size as the stock front K20 ones but the piston is a little smaller, which is ok since the rear shouldn't do as much work as the front.

Parking brake cable brackets I made to use stock parking brake stuff:

02-08-2014, 07:51 PM	#1
69Rumbler Registered User Join Date: Jan 2013 Location: Los Angeles Posts: 903	Disc Brake kits 8 lugs What kits are you guys using ?? For 8 lug disc brakes __________________ 1969 C20 CUSTOM "RUMBLEr"

02-08-2014, 08:19 PM	#2
ZombiePopper Registered User Join Date: Jan 2014 Location: Pomona, KS Posts: 27	Re: Disc Brake kits 8 lugs I'm curious about this also (for the rear axle 4x4)

02-08-2014, 08:57 PM	#3
SS Tim Registered User Join Date: Aug 2010 Location: Edwards, CA Posts: 7,503	Re: Disc Brake kits 8 lugs Front is a straight bolt on of factory parts up through 91 in some cases. http://67-72chevytrucks.com/vboard/s...68&postcount=4 Rear discs are more of a problem. If you find a C20/30 kit with a real park brake and not a car rated caliper let me know. __________________ Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID Blazer SPID Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders Do you have a 1972 Plaid Pickup? Plaid Blazer ** Plaid Suburban Last edited by SS Tim; 02-08-2014 at 09:04 PM.

02-08-2014, 09:20 PM	#4
derotoreut Roto Reuter thats the name... Join Date: Feb 2010 Location: Darien, NY Posts: 1,853	Re: Disc Brake kits 8 lugs Only did fronts on my C20. I researched both CPP and POL I decided to use Performance Online. Attached Images __________________ ~ Dan My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977

02-08-2014, 09:22 PM	#5
budnikguy Registered User Join Date: Sep 2007 Location: Riverside, CA Posts: 4,316	Re: Disc Brake kits 8 lugs If you are speaking of front disc brakes, i have a complete swap out from a 71 3/4 ton that would do the job for ya..and I am local to you...

02-08-2014, 09:22 PM	#6
69Rumbler Registered User Join Date: Jan 2013 Location: Los Angeles Posts: 903	Re: Disc Brake kits 8 lugs How they working ... Any complaints ? __________________ 1969 C20 CUSTOM "RUMBLEr"

02-08-2014, 09:27 PM	#7
69Rumbler Registered User Join Date: Jan 2013 Location: Los Angeles Posts: 903	Re: Disc Brake kits 8 lugs Yea I am I just PM you ! __________________ 1969 C20 CUSTOM "RUMBLEr"

02-08-2014, 09:52 PM	#8
Aussie Ol' Blue Registered User Join Date: Sep 2013 Location: Sassafras. Victoria. The beautiful Mount Dandenong Ranges Posts: 234	Re: Disc Brake kits 8 lugs I'm planning on doing this conversion as well but have heard that there is a difference in the bolt sizes between the disc and old drums. Is that actually the case? 70/c20 __________________ CLASSIC 1970 C20 WITH A RUMBLIN' V8. IT'S MY MID-LIFE CRISIS ONLY IT AIN'T A LITTLE RED SPORTS CAR OR A HARLEY! IF YOU'RE GUNNA SKATE ON THIN ICE, YOU MAY AS WELL TAP DANCE!

02-08-2014, 10:37 PM	#10
72 K20 Registered User Join Date: Mar 2011 Location: Brandon,Iowa Posts: 391	Re: Disc Brake kits 8 lugs Here's a couple of links that might help ! http://www.ruffstuffspecialties.com/...g/EHO5272.html http://blackbirdscustomtrucks.com/index7.html

02-08-2014, 11:27 PM	#11
colgad Registered User Join Date: Jun 2006 Location: Lutz, Florida Posts: 838	Re: Disc Brake kits 8 lugs I used the BlackBird ones and the kit is simple to install. All bolt on. __________________ 1967 Red, C10 Short Bed 6.0L T5 5 speed 1967 Orange and Black C50 6.2 Detroit Diesel NV4500, 2 Ton Pickup 1972 White, Chevy Blazer 2WD 67 Dog house 5.3 4L65 2016 Power Tour LH 1955 Red-Cream, Chevrolet Nomad, restoration on hold 2004 Black, Corvette Z06 LS6 convertible (Rock solid Fun) 2011/2018 Power Tour

02-09-2014, 12:09 AM	#13
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,941	Re: Disc Brake kits 8 lugs I'd like more details also! Pics, etc. Did ya go with the integral parking brake caliper? If so, any issues you might see with it holding a truck with a camper? Did you need to add an adjustable prop valve to balance front / rear - or was the factory distrib block ok?? (I assume you'd have to have an adj valve). Very interested. Last edited by jocko; 02-09-2014 at 12:29 AM.

02-09-2014, 10:48 AM	#14
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: Disc Brake kits 8 lugs Heres one I put together myself on the Eaton HO52 using the brackets from NW fabworks. If doing again, I would find brackets with holes already in that allow the caliper to mount at the 3/9 o'clock position. I used 78 Eldorado calipers and its true they are from a car, but those cars were huge and weighed what, 5000 lbs? Compared to the smallish 11x2 that was stock on the eaton, I cant believe I lost much if any stopping power. Caveat is I haven't had it out on the road yet, but should in a couple days. The calipers are the same size as the stock front K20 ones but the piston is a little smaller, which is ok since the rear shouldn't do as much work as the front. Parking brake cable brackets I made to use stock parking brake stuff: __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6



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