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#1 |
Registered User
Join Date: Apr 2006
Location: Ontario, Canada
Posts: 16
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C-30 Rear Brakes?
I need to replace a drum on my c30 longhorn.
I do have a couple of question though.... 1. are the brake drums the same for both the corporate and dana 60 rears? My longhorn has the corporate rearend. My local autoparts store only has one part number for a '69 c-30? 2. what size is the large nut that needs to be removed to get to the drum off? Thanks in advance!!!!!!!
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1969 Chevrolet Longhorn C30 - 350, 4-speed |
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#2 |
Registered User
Join Date: Feb 2004
Location: Tacoma WA
Posts: 1,365
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Re: C-30 Rear Brakes?
IIR Eaton and Dana use different drums. Dana is usually held on with 2 countersunk screws. Eaton is different - I don't have one - I don't know.
I do know Dana.
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67 C-20 LWB, tilt, speed alert, vac, 454, T400 67 C-10 SWB, factory air with more to follow |
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#3 |
Registered User
Join Date: Jan 2002
Location: cornville, maine
Posts: 659
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Re: C-30 Rear Brakes?
They are not the same drums, but sorry I dont know the nut size.
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jku Cornville, Maine 68 C10 burb 42 Willys MB 46 Dodge WF-32 1.5 ton 53 & 56 Olds' 60 Cadillac 22 Dodge Brothers |
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#4 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: C-30 Rear Brakes?
Not only are they not the same drums, but you probably won't find any new drums. They haven't been made in some 20 years or so. I even have a contact here locally for real hard to find brake parts, he hasn't seen SRW one ton 67 - 72 Corp drums in at least 15 years.
Personally, I say it's time for an upgrade. That's my plan. I still have about 2 years on my brakes, then it's do or die. |
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#5 |
Registered User
Join Date: Apr 2006
Location: Ontario, Canada
Posts: 16
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Re: C-30 Rear Brakes?
Longhorn Man - What are you going to upgrade too? Dana 60
If so will it bolt in and the existing drive shaft work with the Dana? What are you planning on doing?
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1969 Chevrolet Longhorn C30 - 350, 4-speed |
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#6 |
Registered User
Join Date: Jun 2002
Location: central pa
Posts: 1,525
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Re: C-30 Rear Brakes?
Yep time to upgrade to a 14b FF, Lots of parts available.
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72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne |
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#7 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: C-30 Rear Brakes?
If I can get my hands on a Dana out of a big block truck... I'd be beyond happy.
Other than that, i haven't thought about it too much. I still have 2 years or so. ![]() |
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#8 |
Registered User
Join Date: Jun 2002
Location: central pa
Posts: 1,525
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Re: C-30 Rear Brakes?
Why a BB truck? They came on 3/4 4x4 and some GMC 3/4 2wd's.
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72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne |
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#9 |
Registered User
Join Date: Apr 2006
Location: Ontario, Canada
Posts: 16
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Re: C-30 Rear Brakes?
the big block trucks have 3.52 ratio
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1969 Chevrolet Longhorn C30 - 350, 4-speed |
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#10 |
"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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Re: C-30 Rear Brakes?
Actually Dana 60's would have a 3.54 ratio behind the big blocks(usually). I have 2 and they are both posi but neither are longhorn axles.
But I do have 2 very nice single rear wheel drums which came off a longhorn axle. I am thinking they are 71-72 though which would be wider than your 69's. If shipping to Canada doesn't kill it or the wider drums drop me a PM.
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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#11 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: C-30 Rear Brakes?
da-burb hit it... I want the gears.
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#12 |
Lovin' Life in Miss.!
Join Date: Mar 2004
Location: Puckett, Mississippi
Posts: 1,937
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Re: C-30 Rear Brakes?
Sound like a long-shot but call these guys up. http://sacramento.citysearch.com/profile/1233404 Wish I could remember the name of the ole guy that helped me... But they did not mind going to the books to look for parts and they were CHEAP.
Edit: They specialize in heavy vehicle clutch and brake parts. They are not a maintenance facility. Found their website. http://www.ccbparts.com/default.htm
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The truck... you hear that? No really, you did hear that?!!! Last edited by chickenwing; 04-29-2006 at 08:51 PM. |
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#13 |
Registered User
Join Date: Apr 2006
Location: Ontario, Canada
Posts: 16
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Re: C-30 Rear Brakes?
Update......
Well Longhorn Man, I took your advice and went looking for a new rear end. Went out to a firends today that had a '78 14 bolt rearend. I looked at it and took some measurements. Then he suggested that we go to his neighbours who had lots of old stuff. If he didn't have a 71 c20 behind the barn. I bought the complete eaton rear out of it for 60 bucks. I figure one of the drums should be salvagable for my truck. Question - How is the availablity of brake components for the rear (besides the drums)? and are the front brake components still available and standard for all c30's? Thanks alot in adavance !!!!! I just want to get her on the road....I can't wait!!!!
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1969 Chevrolet Longhorn C30 - 350, 4-speed |
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#14 |
Registered User
Join Date: Feb 2003
Location: The Rubber City
Posts: 5,498
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Re: C-30 Rear Brakes?
there are disc brake kits available for the Eaton, to me it would make more sense to swap to disks than get a whole new axle which may have different gears.
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1969 GMC K2500 ![]() 1996 Honda Accord 2007 Kawasaki KLR 650 |
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#15 | |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: C-30 Rear Brakes?
Quote:
Besides, disks in the rear are kinda pointless (onless you do alot of mud runnin) and you'd still have an outdated rear with impossable to find parts. Good to go... with the exception of seals, pretty much EVERYTHING will be a PITA to locate for an HO72. From drum to drum, and everything in between. |
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#16 |
Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
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Re: C-30 Rear Brakes?
i just converted to rear disks on mine.it cost me $310 with new caddy calipers with parking break and all new seals brakets and used roters turned and i have enough parts left over to do another 5 lug axel from my scavaging. as far as theinternals in a eaton the can be replaced with 14 bolt parts. check out pirate 4x4.com
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common sense isn't so common anymore |
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#17 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: C-30 Rear Brakes?
Quote:
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#18 |
Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
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Re: C-30 Rear Brakes?
67c30 how does the width compare i'm with longhorn man 4.10s suck on the highway
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common sense isn't so common anymore |
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#19 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: C-30 Rear Brakes?
They measure just about the same. I can't recall the exact number, but they are very close. I will be on the yard tomorrow, and I will pull a tape on them. I was going to use the 3.30 geared one in my '67 C-30 until I decided to go with '92 C3500 chassis with an OD tranny.
Another good alternative is 3.42 geared 14 bolts. Down here, in the early 80's, Alabama Power used to order tons of 3/4 LWB stepside P/U's with 250 L6 / SM465 4 speeds, and 3.42 geared 14b FF's. I'm sure a lot of these trucks were spec'd out the same for other municipalities, park rangers, civil service, etc.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 05-01-2006 at 12:51 AM. |
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#20 |
Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
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Re: C-30 Rear Brakes?
3.42s would be perfect with the caddy engines
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common sense isn't so common anymore |
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#21 |
Registered User
Join Date: Apr 2006
Location: Ontario, Canada
Posts: 16
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Re: C-30 Rear Brakes?
I measured my eaton yesterday before I went looking for another rear and it measures 65 inches from lug flange to lug flange
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1969 Chevrolet Longhorn C30 - 350, 4-speed |
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#22 | |
Registered User
Join Date: Feb 2003
Location: The Rubber City
Posts: 5,498
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Re: C-30 Rear Brakes?
Quote:
D'oh! I keep thinking we're talking about 4x4's...but we're talkin about 2wds. So finding matching gears doesnt really matter ![]() As far as the impossible to find parts...as a CarQuest employee, I couldn't disagree more. Drums, ok...but the other stuff can be had. There was an Eaton part # thread a while back in the 4x4 forum, alot of good info there.
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1969 GMC K2500 ![]() 1996 Honda Accord 2007 Kawasaki KLR 650 |
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#23 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: C-30 Rear Brakes?
OK, then please prove me wrong... I just went through this last year, have one of the best NAPA guys you can find.
Get me the price and avalability for the shoes, adjuster kits, hdwr kits and brake cylinders for a 70 SRW one ton without dana axle. (9000 GVW, 7200 rear) Last year, I replaced one set of shoes, 3 brake cylinders, springs/hdwr kits all around, 2 adjusters, 4 seals, 2 inner and 2 outer bearings for the front, and I think that's about it... I was out $500 (that is with a prety decent discount) when it was all done and over... and I still have 4 old drums, front shoes are old, and one brake cylinder that can pop any day. Not trying to be cockey here... just I spent a small fortune on junk that is still marginally worthless. Last edited by Longhorn Man; 05-01-2006 at 09:04 PM. |
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#24 |
Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
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Re: C-30 Rear Brakes?
andy if your interested i saved all the hardware that was any good from my eaton i thinnk i have 1 good wheel cyl 1 good backing plate ajusters and springs i think the drums were both shot i'll look your welcome to any or all if you want it
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common sense isn't so common anymore |
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#25 | |
A little east of nowhere
Join Date: Feb 2006
Location: LaBroquerie,Manitoba Canada
Posts: 168
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Re: C-30 Rear Brakes?
Quote:
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68 C10 250 4spd 69 C20 327 4spd 69 910 250 3spd 80 K10 350 4spd 76 C60 366 5spd school bus "THERE'S NOTHING YOU CAN BREAK THAT SOMEONE CAN'T BE PAID TO REPAIR" |
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