C30 Brake Parts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dirtwork · 11-01-2012, 09:10 PM

I am trying to find brake parts for my 71 C30. I have located a Wagner part number BD60442 for the front rotors, but nowhere seems to be be able to obtain them locally. Books show the part number as available but can't order it. Having no luck on drums. Truck is a dually. Any info would be appeciated.

SS Tim · 11-02-2012, 12:48 AM

Have you tried NAPA? Had a P/N for the fronts then realized they were for a Longhorn not a DRW.

dirtwork · 11-02-2012, 08:10 AM

NAPA has been looking. They have a listing for them and they are not discontinued, but can't seem to order. Maybe I will have some updates today.

da-burb · 11-03-2012, 12:14 AM

You will not find the rear drums unless you can find a low miles C30 motor home out there somewhere. They are a 2 year only drum, 71-72. I picked up a Dana 70 dually axle to put into my 71 C30 motor home the moment she gives me a reason. All the parts are still available and less expensive than the 40 year old extinct HO-72. I haven't needed front discs yet so I can't help you with that. But I would swap in the 73-87 front parts if finding the 71-72s are a problem.

farmall · 11-03-2012, 01:45 PM

Ive been down that road. No longer available. I am going to use 73+ even if I have to change the diff and spindles.

dirtwork · 11-03-2012, 02:06 PM

I have been striking out on the rotors everywhere. From what I understand a newer 75-85 rotor will mount up, but the disc itself it almost 1/4" thicker. I doubt if its as simple as swapping in the newer calipers.

SS Tim · 11-03-2012, 04:39 PM

Need to do a site search on lowering an early C30. Pretty sure it is the ball joints out as I recall to do the swap. To pick up an extra quarter inch of rotor would be worth the effort.

dirtwork · 11-03-2012, 07:02 PM

Gonna have to do some reasarch on that swap. There was a guy working on a c30 on the board about a month ago, putting on 22" wheels on a former wrecker. He got rotors from somewhere, either by getting lucky and finding someone with them on the shelf, or maybe he did the 73-87 swap. There are plenty of newer 1 tons in junkyards around here so finding the spindles would be fairly easy. Parts for the 73-87 have always been plentiful and cheap.

Country_Boy_2007 · 11-03-2012, 07:14 PM

i would just go ahead and see if you could convert it to the 73-87 chevy brakes. parts will be much cheaper.

71swb4x4 · 11-03-2012, 07:16 PM

I put a 75 C30 front under my 67 C30. It's pretty much just like the 71+ disc swap for the half tons onto a drum front.
I have the rearend too, but haven't swapped that over yet. I wanted the larger brakes that the 75 offered.

dirtwork · 11-04-2012, 08:50 AM

71swb4x4 did you swap in the entire front suspension from the 75 or just the spindles like SS Tim said?

71swb4x4 · 11-04-2012, 11:03 AM

We swapped it all, I actually went to hydroboost from the same truck. But, IIRC everything was interchangable. We had a control arm that was completely worn out so we used the one from the 67. Since we were in there, we replaced all the wear parts.

I went from power drums, to hydroboost discs.

I think you can go spindles out and you will be fine with parts matching up.

dirtwork · 11-12-2012, 11:20 PM

Well I got lucky on this brake rotor issue (for now). A local junkyard had a 72 c30, actually a gmc 3500, and suprisingly the rotors were in nice shape with only light surface rust. We mic'ed them and they had plenty of meat left. So with a light cut they were good to go. I need to gather a pair of 73+ c30 spindles for the next time around.

So the old beast is back in business once again.

11-01-2012, 09:10 PM	#1
dirtwork Registered User Join Date: Jan 2012 Location: Chardon, Ohio Posts: 81	C30 Brake Parts I am trying to find brake parts for my 71 C30. I have located a Wagner part number BD60442 for the front rotors, but nowhere seems to be be able to obtain them locally. Books show the part number as available but can't order it. Having no luck on drums. Truck is a dually. Any info would be appeciated.

11-02-2012, 12:48 AM	#2
SS Tim Registered User Join Date: Aug 2010 Location: Edwards, CA Posts: 7,503	Re: C30 Brake Parts Have you tried NAPA? Had a P/N for the fronts then realized they were for a Longhorn not a DRW. __________________ 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; 11-02-2012 at 12:54 AM. Reason: wrong info

11-02-2012, 08:10 AM	#3
dirtwork Registered User Join Date: Jan 2012 Location: Chardon, Ohio Posts: 81	Re: C30 Brake Parts NAPA has been looking. They have a listing for them and they are not discontinued, but can't seem to order. Maybe I will have some updates today.

11-03-2012, 12:14 AM	#4
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	Re: C30 Brake Parts You will not find the rear drums unless you can find a low miles C30 motor home out there somewhere. They are a 2 year only drum, 71-72. I picked up a Dana 70 dually axle to put into my 71 C30 motor home the moment she gives me a reason. All the parts are still available and less expensive than the 40 year old extinct HO-72. I haven't needed front discs yet so I can't help you with that. But I would swap in the 73-87 front parts if finding the 71-72s are a problem. __________________ 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

11-03-2012, 01:45 PM	#5
farmall Registered User Join Date: Jun 2011 Location: Central OR Posts: 678	Re: C30 Brake Parts Ive been down that road. No longer available. I am going to use 73+ even if I have to change the diff and spindles. __________________ 1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2

11-03-2012, 02:06 PM	#6
dirtwork Registered User Join Date: Jan 2012 Location: Chardon, Ohio Posts: 81	Re: C30 Brake Parts I have been striking out on the rotors everywhere. From what I understand a newer 75-85 rotor will mount up, but the disc itself it almost 1/4" thicker. I doubt if its as simple as swapping in the newer calipers.

11-03-2012, 04:39 PM	#7
SS Tim Registered User Join Date: Aug 2010 Location: Edwards, CA Posts: 7,503	Re: C30 Brake Parts Need to do a site search on lowering an early C30. Pretty sure it is the ball joints out as I recall to do the swap. To pick up an extra quarter inch of rotor would be worth the effort. __________________ 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

11-03-2012, 07:02 PM	#8
dirtwork Registered User Join Date: Jan 2012 Location: Chardon, Ohio Posts: 81	Re: C30 Brake Parts Gonna have to do some reasarch on that swap. There was a guy working on a c30 on the board about a month ago, putting on 22" wheels on a former wrecker. He got rotors from somewhere, either by getting lucky and finding someone with them on the shelf, or maybe he did the 73-87 swap. There are plenty of newer 1 tons in junkyards around here so finding the spindles would be fairly easy. Parts for the 73-87 have always been plentiful and cheap.

11-03-2012, 07:14 PM	#9
Country_Boy_2007 Registered User Join Date: Oct 2012 Location: C-Ville, Ohio Posts: 33	Re: C30 Brake Parts i would just go ahead and see if you could convert it to the 73-87 chevy brakes. parts will be much cheaper. __________________ 1987 Chevy 4x4, lifted 6 inches 35"BFG KM's My Baby 1988 Ford F250HD 5 sp 4x4 7.3L The Work Truck 1970 Chevy C30HD long WB Dulley, 4 sp 350...for now The Project If you cant dazzle them with brilliance, baffle them with Bull$***

11-03-2012, 07:16 PM	#10
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: C30 Brake Parts I put a 75 C30 front under my 67 C30. It's pretty much just like the 71+ disc swap for the half tons onto a drum front. I have the rearend too, but haven't swapped that over yet. I wanted the larger brakes that the 75 offered. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

11-04-2012, 08:50 AM	#11
dirtwork Registered User Join Date: Jan 2012 Location: Chardon, Ohio Posts: 81	Re: C30 Brake Parts 71swb4x4 did you swap in the entire front suspension from the 75 or just the spindles like SS Tim said?

11-04-2012, 11:03 AM	#12
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: C30 Brake Parts We swapped it all, I actually went to hydroboost from the same truck. But, IIRC everything was interchangable. We had a control arm that was completely worn out so we used the one from the 67. Since we were in there, we replaced all the wear parts. I went from power drums, to hydroboost discs. I think you can go spindles out and you will be fine with parts matching up. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

11-12-2012, 11:20 PM	#13
dirtwork Registered User Join Date: Jan 2012 Location: Chardon, Ohio Posts: 81	Re: C30 Brake Parts Well I got lucky on this brake rotor issue (for now). A local junkyard had a 72 c30, actually a gmc 3500, and suprisingly the rotors were in nice shape with only light surface rust. We mic'ed them and they had plenty of meat left. So with a light cut they were good to go. I need to gather a pair of 73+ c30 spindles for the next time around. So the old beast is back in business once again.



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