Newcomer: Opinions on rear disc brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ronh72c10 · 07-25-2003, 03:48 PM

Hi all, I bought a 72 C10 three weeks ago and recently found this cool site. As you can see below it's not exactly a cherry truck, actually a bit of a dung'r, but I plan on fixing it up for around the farm and as the occasional fun driver.

My question is, apart from buying one of the many rear disc brake kits out there, has anyone found a junkyard bolt-in that works without too much modification. Such as not requiring a lathe to open up center holes in discs, etc...

I was digging around and found this site for modifying a 12 bolt Camaro rear axle to use calipers and brackets from a 77-79 Deville and rotors from a 79 -81 Trans-Am.

http://www.geocities.com/motorcity/6765/page11.html

Is there any reason why this wouldn't work for the 12 bolt in my C10?

Thanks,
Ron

knucklebuster · 07-25-2003, 04:04 PM

You can use the older lincoln rear ends with minor mods,they already have discs and are 9 inch I think

dubie · 07-25-2003, 04:08 PM

I like that truck!!! I am currently building a 72 with a flatbed on it. Welcome to the best Chevy pick up site on the net. Can you offer any other details on your truck?

70c10 · 07-25-2003, 04:24 PM

Welcome from Maryland!. Dang Tim!, that avatar's funny,lol

dubie · 07-25-2003, 04:37 PM

hehe yeah I couldn't resist it

jays68yak · 07-25-2003, 04:39 PM

They should bolt on. I have that setup that Ill prob end up putting on my subruban instead of my lemans to help with braking when towing the car. The housing ends should be the same. The only thing that I have ran into so far is that you might have to get the axle turned down to fit into the the rotor. Other then that it should bolt up. You will have to find a master cylinder for disc/disc. Good luck finding the setup tho. The junk yard that I got the calipers, rotors, and backing plates from wanted to charge me $175 for it. I ended up paying $100. They are over priced on all of thier stuff, that why i try to not go to them. Or you can buy the parts new from an auto parts store.
Oh my stuff came off of a 79 WS6 firebird. Another thing to watch out for is the ebrake cables. They are on different sides as are the calipers, one side might hit a shock mount or something else. Something I was told to watch out for when swaping them into a 64-72 a body car.

Oh yeah since you have a 72, your truck should be 5 lug. The deville rotors should have the same bolt pattern. The camaro/firebird rotors are 5 on 4.75 bolt circle. Your truck and the deville should be 5 on 5 bolt circle.

krue · 07-25-2003, 05:08 PM

Welcome to the board from sunny South Mississippi!

ronh72c10 · 07-25-2003, 05:11 PM

Wow! Quick responses, I guess I'm not the only one who should be working.

jays68yak Re: the Deville rotors, so it sounds like I should be able to get everything I need from a Deville. Did you use the Firebird parts because that was what you could get or because they fit better?

As far as pricey junkyard parts goes, since it'll be a while before I need the parts I'm hoping that the father of a friend will be able to scrounge me up a deville, he has incredible luck finding junkers for nothing. The laugh was a local salvage yard called him once to see if he had a Taurus tranny amoung his collection! He does have an 80? Eldorado sitting in his yard, anything salvageable from that?

dubie: When I bought it I actually intended to replace the flatdeck with a standard longbox, but after some thought I decided to build a Goliath flatbed for it. The old one was mostly wood and has rotted away.

The truck itself is pretty much as basic as they can get, 3 on the tree, 250 straight six, no chrome(well nearly none), no gauges, no ps, no pb, no radio (although someone added one, but I still have the blank-out panel) no cigarette lighter, no door switches for the dome light, hmmm oh well if there's anything I forgot assume it doesn't have it. Except rust, the floor and the frame are pretty much gone, I picked up a 68 California frame for it last week that's solid, I was amazed it still has some of the chassis black on it.

Long post, I'll shut my hole,

Ron

jays68yak · 07-25-2003, 05:18 PM

Quote:

Originally posted by ronh72c10
Wow! Quick responses, I guess I'm not the only one who should be working.

jays68yak Re: the Deville rotors, so it sounds like I should be able to get everything I need from a Deville. Did you use the Firebird parts because that was what you could get or because they fit better?

As far as pricey junkyard parts goes, since it'll be a while before I need the parts I'm hoping that the father of a friend will be able to scrounge me up a deville, he has incredible luck finding junkers for nothing. The laugh was a local salvage yard called him once to see if he had a Taurus tranny amoung his collection! He does have an 80? Eldorado sitting in his yard, anything salvageable from that?

Its friday, I have an hour left of work. Dont feel like doing anything, and Im bored.

I got the firebird parts cuz thats what i found, i wasnt even looking for it, just came upon it. I had read that they could work so i got them. I have yet to even bother looking for devilles. I believe they are the same parts between the two cars. 76-79 deville and 79-81 ws6 firebird/trans am. Not sure about anything being salvageable from the 80 eldorado.

jays68yak · 07-25-2003, 05:33 PM

Still trying to kill time.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2424477862

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2425115986

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2425281673

ronh72c10 · 07-25-2003, 11:08 PM

Now that is interesting, from one of those ebay ads it would seem that Seville brakes would work too if they are on a live axle.

Cool, this is a great start, now I just have to dismantle my donor frame blast it, paint it, take apart a truck and put it back together again. And fix up the broken and rusted bits, should be simple.

jimfulco · 07-26-2003, 12:35 AM

I thought the 77-79 Sevilles were basically slightly modified Novas. If so, the bolt pattern is the small one. I may be off base (nothing new), but I also think they mean it works on a car 12-bolt, not a truck one.

jays68yak · 07-26-2003, 01:05 AM

the car and truck bolt pattern for the housing should be the same.

dmec · 07-26-2003, 03:13 AM

the car and truck housing bolt patterns are different as are the tube diameters. cad seville will work on passenger cars but need modifications for trucks.

Rod · 07-26-2003, 11:50 PM

Not exactly about 5 bolt pattern but Steve Chin wrote this artcle on rear disc on a 69 4x4 blazer.
http://home.pacbell.net/bigiron/Arti...rRearDisc.html

Blue4x4 · 07-27-2003, 09:12 AM

welcome to the board. Keep us posted on your progress.

ronh72c10 · 07-27-2003, 11:51 AM

Thanks for the help, I'll take some measurements off of the truck axle and compare them to the axle on a deville when I find one. There actually was one in the local ISell paper for $500, it also had a 452? in it, if I had the cash right now I'd have it.

Ron

07-25-2003, 03:48 PM	#1
ronh72c10 Senior Member Join Date: Jul 2003 Location: Mount Forest, Ontario, Canada Posts: 978	Newcomer: Opinions on rear disc brakes Hi all, I bought a 72 C10 three weeks ago and recently found this cool site. As you can see below it's not exactly a cherry truck, actually a bit of a dung'r, but I plan on fixing it up for around the farm and as the occasional fun driver. My question is, apart from buying one of the many rear disc brake kits out there, has anyone found a junkyard bolt-in that works without too much modification. Such as not requiring a lathe to open up center holes in discs, etc... I was digging around and found this site for modifying a 12 bolt Camaro rear axle to use calipers and brackets from a 77-79 Deville and rotors from a 79 -81 Trans-Am. http://www.geocities.com/motorcity/6765/page11.html Is there any reason why this wouldn't work for the 12 bolt in my C10? Thanks, Ron Attached Images

07-25-2003, 04:04 PM	#2
knucklebuster Failure is NOT an option! Join Date: Feb 2003 Location: greenwood s.c. Posts: 811	You can use the older lincoln rear ends with minor mods,they already have discs and are 9 inch I think __________________ House payment or truck parts?????.........why does life have to be so complicated? 1969 Chevy Shortbed Fleetside 1969 Camaro ps pb a/c(drove in high school now it's just a yard ornament,but it's next on the list for resto) 1990 Ni$$an hardbody( daily beater that has been really beaten!) 1999 Grand Am GT(wifes ride...never buy a pontiac!!Trust Me)

07-25-2003, 04:08 PM	#3
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,855	I like that truck!!! I am currently building a 72 with a flatbed on it. Welcome to the best Chevy pick up site on the net. Can you offer any other details on your truck? __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

07-25-2003, 04:24 PM	#4
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	Welcome from Maryland!. Dang Tim!, that avatar's funny,lol __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

07-25-2003, 04:37 PM	#5
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,855	hehe yeah I couldn't resist it __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

07-25-2003, 04:39 PM	#6
jays68yak Registered User Join Date: Oct 2002 Location: Gilroy, CA Posts: 1,454	They should bolt on. I have that setup that Ill prob end up putting on my subruban instead of my lemans to help with braking when towing the car. The housing ends should be the same. The only thing that I have ran into so far is that you might have to get the axle turned down to fit into the the rotor. Other then that it should bolt up. You will have to find a master cylinder for disc/disc. Good luck finding the setup tho. The junk yard that I got the calipers, rotors, and backing plates from wanted to charge me $175 for it. I ended up paying $100. They are over priced on all of thier stuff, that why i try to not go to them. Or you can buy the parts new from an auto parts store. Oh my stuff came off of a 79 WS6 firebird. Another thing to watch out for is the ebrake cables. They are on different sides as are the calipers, one side might hit a shock mount or something else. Something I was told to watch out for when swaping them into a 64-72 a body car. Oh yeah since you have a 72, your truck should be 5 lug. The deville rotors should have the same bolt pattern. The camaro/firebird rotors are 5 on 4.75 bolt circle. Your truck and the deville should be 5 on 5 bolt circle. __________________ 1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. " Last edited by jays68yak; 07-25-2003 at 04:47 PM.

07-25-2003, 05:08 PM	#7
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Welcome to the board from sunny South Mississippi! __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

07-25-2003, 05:11 PM	#8
ronh72c10 Senior Member Join Date: Jul 2003 Location: Mount Forest, Ontario, Canada Posts: 978	Wow! Quick responses, I guess I'm not the only one who should be working. jays68yak Re: the Deville rotors, so it sounds like I should be able to get everything I need from a Deville. Did you use the Firebird parts because that was what you could get or because they fit better? As far as pricey junkyard parts goes, since it'll be a while before I need the parts I'm hoping that the father of a friend will be able to scrounge me up a deville, he has incredible luck finding junkers for nothing. The laugh was a local salvage yard called him once to see if he had a Taurus tranny amoung his collection! He does have an 80? Eldorado sitting in his yard, anything salvageable from that? dubie: When I bought it I actually intended to replace the flatdeck with a standard longbox, but after some thought I decided to build a Goliath flatbed for it. The old one was mostly wood and has rotted away. The truck itself is pretty much as basic as they can get, 3 on the tree, 250 straight six, no chrome(well nearly none), no gauges, no ps, no pb, no radio (although someone added one, but I still have the blank-out panel) no cigarette lighter, no door switches for the dome light, hmmm oh well if there's anything I forgot assume it doesn't have it. Except rust, the floor and the frame are pretty much gone, I picked up a 68 California frame for it last week that's solid, I was amazed it still has some of the chassis black on it. Long post, I'll shut my hole, Ron

07-25-2003, 05:33 PM	#10
jays68yak Registered User Join Date: Oct 2002 Location: Gilroy, CA Posts: 1,454	Still trying to kill time. http://cgi.ebay.com/ebaymotors/ws/eB...tem=2424477862 http://cgi.ebay.com/ebaymotors/ws/eB...tem=2425115986 http://cgi.ebay.com/ebaymotors/ws/eB...tem=2425281673 __________________ 1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. "

07-25-2003, 11:08 PM	#11
ronh72c10 Senior Member Join Date: Jul 2003 Location: Mount Forest, Ontario, Canada Posts: 978	Now that is interesting, from one of those ebay ads it would seem that Seville brakes would work too if they are on a live axle. Cool, this is a great start, now I just have to dismantle my donor frame blast it, paint it, take apart a truck and put it back together again. And fix up the broken and rusted bits, should be simple.

07-26-2003, 12:35 AM	#12
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	I thought the 77-79 Sevilles were basically slightly modified Novas. If so, the bolt pattern is the small one. I may be off base (nothing new), but I also think they mean it works on a car 12-bolt, not a truck one.

07-26-2003, 01:05 AM	#13
jays68yak Registered User Join Date: Oct 2002 Location: Gilroy, CA Posts: 1,454	the car and truck bolt pattern for the housing should be the same. __________________ 1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. "

07-26-2003, 03:13 AM	#14
dmec Senior Member Join Date: Jun 2000 Location: yucaipa ca Posts: 580	the car and truck housing bolt patterns are different as are the tube diameters. cad seville will work on passenger cars but need modifications for trucks.

07-26-2003, 11:50 PM	#15
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Not exactly about 5 bolt pattern but Steve Chin wrote this artcle on rear disc on a 69 4x4 blazer. http://home.pacbell.net/bigiron/Arti...rRearDisc.html __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

07-27-2003, 09:12 AM	#16
Blue4x4 Senior Member Join Date: Mar 2003 Location: Sparks, NV Posts: 790	welcome to the board. Keep us posted on your progress.



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07-27-2003, 11:51 AM	#17
ronh72c10 Senior Member Join Date: Jul 2003 Location: Mount Forest, Ontario, Canada Posts: 978	Thanks for the help, I'll take some measurements off of the truck axle and compare them to the axle on a deville when I find one. There actually was one in the local ISell paper for $500, it also had a 452? in it, if I had the cash right now I'd have it. Ron

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