1967 GMC 1 ton dually - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rsuddeth · 08-27-2015, 08:30 PM

I have been wanting an older truck for a long time. I wanted something a little heavier duty. Well I think I found it. The 305 V6 runs great, but the brakes don't do much. I will be making a plan/parts list on Saturday to start rebuilding those giant drum brakes. I am also looking forward to being part of this forum.

70chevytruck · 08-27-2015, 09:07 PM

Welcome!

I too would love a dually....just can't afford the divorce

bill3rail · 08-27-2015, 09:13 PM

Quote:

Originally Posted by 70chevytruck

Welcome!

I too would love a dually....just can't afford the divorce

Cheaper to keep her! Have someone call you with an unbelievable deal on a Dually, then just deal with the *****ing and tell her how great a deal it was and you couldn't refuse it.

Bill

Rsuddeth · 08-27-2015, 09:35 PM

I have had little luck researching a CM3600. Anyone know the details?

71swb4x4 · 08-27-2015, 09:49 PM

I upgraded my 67 C30 to hydroboost front discs, and I would do it again every time. I bought a junked out 1975 C30 dually and stole the hydroboost system from it.

pat english · 08-27-2015, 10:56 PM

Big v6.lucky..

flashed · 08-27-2015, 11:12 PM

Im in for another dually build.

cooperhw · 08-27-2015, 11:41 PM

Quote:

Originally Posted by flashed

Im in for another dually build.

Me too. In 4 another dually. As to telling the wife, sometimes you just have to be forgiven.
Posted via Mobile Device

70's luvr · 08-28-2015, 07:36 AM

Awesome project! What's up with the spare glove box lid with speaker?

Matt Cramer · 08-28-2015, 07:40 AM

Quote:

Originally Posted by 70chevytruck

Welcome!

I too would love a dually....just can't afford the divorce

Shop for new, smaller trucks. Let sticker shock sink in. Find "screaming deal" on old dually. That might work.

And to the OP - great score!

Rsuddeth · 08-28-2015, 07:56 PM

That is the original glove box with all the numbers and options. Apparently someone cut a hole and stuck a speaker in it at one point in time.

**michael bustamante** · 08-29-2015, 11:39 AM

my first 67 was a c10 the exact same color.

Rsuddeth · 08-29-2015, 07:53 PM

Info plates

cooperhw · 08-29-2015, 11:00 PM

Definitely not trying to hijack your thread but I wanted to show you a pic of my 68 1 ton I am building.

I have a build thread call Meet Homer.

Once again I apologize, just wanted to share.

Rsuddeth · 08-30-2015, 07:42 AM

Looks great

Rsuddeth · 08-30-2015, 07:49 AM

Rear brake inspection. Pretty good lip on the drum but otherwise things aren't too bad. Definitely need wheel cylinders. Anyone see anything I should be worried about?

Redline novdog · 08-30-2015, 08:44 AM

You got heavy duty!! Nice truck. Welcome aboard. Looks like a good cleaning and brake rebuild to me. How do the bearing stubs look? I locked a bearing on a full floater axle, never could get it to seal,ended up replacing with a used 14 bolt. What rearend do you have there?

Rsuddeth · 08-30-2015, 01:41 PM

It is an H072 with a 4.57 ratio. The axle/bearing stub looks good though am a little concerned with the drums. Left one has a pretty good lip cut into it. I haven't looked at the other side yet.

Redline novdog · 08-30-2015, 06:13 PM

I don't know about that old of drums but the newer ones have a minimum dimension cast into the drum. Way cool problems, nice truck.

Rsuddeth · 08-31-2015, 09:55 PM

After a little reading, am I correct in assuming I can use a regular 80w90 gear lube for both the np435 Trans and the h072 rear end?

Torpex · 08-31-2015, 10:04 PM

I cant remember who I bought them from, but some outfit in California was where I bought 2 new, made in USA drums for my HO72. I pull a Horse Trailer with my C20 4x4 and I can say the brakes in this truck are absolutely outstanding. Manual brakes that respond like power brakes, wish the brakes on my K5 Blazer were this good..lol

Frank

Rsuddeth · 09-01-2015, 06:39 AM

Torpex, I think Centrix has them. I am not too concerned as I have some spares that came with the truck.

Rsuddeth · 09-01-2015, 06:40 AM

Should I replace or rebuild the wheel cylinders? Do they rebuild well or is it just better to replace?

Cape Codder · 09-01-2015, 07:20 AM

If the bore is pitted I would replace them. If not clean them up with a hone and rebuild. Make sure to get all the old fluid out of the system.

Rsuddeth · 09-01-2015, 06:55 PM

What about oil/lube for rear end and trans. Any suggestions?

08-27-2015, 08:30 PM	#1
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	1967 GMC 1 ton dually I have been wanting an older truck for a long time. I wanted something a little heavier duty. Well I think I found it. The 305 V6 runs great, but the brakes don't do much. I will be making a plan/parts list on Saturday to start rebuilding those giant drum brakes. I am also looking forward to being part of this forum. Attached Images

08-27-2015, 09:07 PM	#2
70chevytruck Registered User Join Date: Jun 2007 Location: Buda, Texas Posts: 865	Re: 1967 GMC 1 ton dually Welcome! I too would love a dually....just can't afford the divorce __________________ 70chevytruck

08-27-2015, 09:35 PM	#4
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually I have had little luck researching a CM3600. Anyone know the details?

08-27-2015, 09:49 PM	#5
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: 1967 GMC 1 ton dually I upgraded my 67 C30 to hydroboost front discs, and I would do it again every time. I bought a junked out 1975 C30 dually and stole the hydroboost system from it. __________________ 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.

08-27-2015, 10:56 PM	#6
pat english Registered User Join Date: Aug 2013 Location: la puente ca Posts: 358	Re: 1967 GMC 1 ton dually Big v6.lucky..

08-27-2015, 11:12 PM	#7
flashed Registered User Join Date: Oct 2009 Location: canton ga Posts: 12,724	Re: 1967 GMC 1 ton dually Im in for another dually build.

08-28-2015, 07:36 AM	#9
70's luvr Registered User Join Date: Nov 2013 Location: Spring Hill,Fl Posts: 223	Re: 1967 GMC 1 ton dually Awesome project! What's up with the spare glove box lid with speaker?

08-28-2015, 07:56 PM	#11
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually That is the original glove box with all the numbers and options. Apparently someone cut a hole and stuck a speaker in it at one point in time.

08-29-2015, 11:39 AM	#12
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: 1967 GMC 1 ton dually my first 67 was a c10 the exact same color. __________________ 1967custom

08-29-2015, 07:53 PM	#13
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually Info plates Attached Images

08-29-2015, 11:00 PM	#14
cooperhw Registered User Join Date: Oct 2014 Location: Mesa AZ (Near Phoenix) Posts: 2,302	Re: 1967 GMC 1 ton dually Definitely not trying to hijack your thread but I wanted to show you a pic of my 68 1 ton I am building. I have a build thread call Meet Homer. Once again I apologize, just wanted to share. Attached Images __________________ "Life is too short to drive a boring vehicle". Later, Wayne

08-30-2015, 07:42 AM	#15
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually Looks great

08-30-2015, 07:49 AM	#16
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually Rear brake inspection. Pretty good lip on the drum but otherwise things aren't too bad. Definitely need wheel cylinders. Anyone see anything I should be worried about? Attached Images

08-30-2015, 08:44 AM	#17
Redline novdog Registered User Join Date: Jan 2012 Location: Washington,Il Posts: 632	Re: 1967 GMC 1 ton dually You got heavy duty!! Nice truck. Welcome aboard. Looks like a good cleaning and brake rebuild to me. How do the bearing stubs look? I locked a bearing on a full floater axle, never could get it to seal,ended up replacing with a used 14 bolt. What rearend do you have there? __________________ It builds on my intelligence when I make a mistake, Boy am I building on it! '67 C-10,'70 Nova SS

08-30-2015, 01:41 PM	#18
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually It is an H072 with a 4.57 ratio. The axle/bearing stub looks good though am a little concerned with the drums. Left one has a pretty good lip cut into it. I haven't looked at the other side yet.



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08-30-2015, 06:13 PM	#19
Redline novdog Registered User Join Date: Jan 2012 Location: Washington,Il Posts: 632	Re: 1967 GMC 1 ton dually I don't know about that old of drums but the newer ones have a minimum dimension cast into the drum. Way cool problems, nice truck. __________________ It builds on my intelligence when I make a mistake, Boy am I building on it! '67 C-10,'70 Nova SS

08-31-2015, 09:55 PM	#20
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually After a little reading, am I correct in assuming I can use a regular 80w90 gear lube for both the np435 Trans and the h072 rear end?

08-31-2015, 10:04 PM	#21
Torpex Registered User Join Date: Jul 2015 Location: Deep River CT Posts: 13	Re: 1967 GMC 1 ton dually I cant remember who I bought them from, but some outfit in California was where I bought 2 new, made in USA drums for my HO72. I pull a Horse Trailer with my C20 4x4 and I can say the brakes in this truck are absolutely outstanding. Manual brakes that respond like power brakes, wish the brakes on my K5 Blazer were this good..lol Frank

09-01-2015, 06:39 AM	#22
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually Torpex, I think Centrix has them. I am not too concerned as I have some spares that came with the truck. Attached Images

09-01-2015, 06:40 AM	#23
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually Should I replace or rebuild the wheel cylinders? Do they rebuild well or is it just better to replace?

09-01-2015, 07:20 AM	#24
Cape Codder Registered User Join Date: May 2013 Location: Centerville,Ma. Posts: 1,223	Re: 1967 GMC 1 ton dually If the bore is pitted I would replace them. If not clean them up with a hone and rebuild. Make sure to get all the old fluid out of the system.

09-01-2015, 06:55 PM	#25
Rsuddeth Registered User Join Date: Aug 2015 Location: GREENVILLE, sc Posts: 14	Re: 1967 GMC 1 ton dually What about oil/lube for rear end and trans. Any suggestions?

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