1972 c/30 bb longhorn - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**RPOZ11** · 01-27-2018, 06:05 PM

Here is the start of my Longhorn rebuid/restore.
This is a complete bumper to bumper original unmolested truck.
Its time to do her!

**RPOZ11** · 01-27-2018, 06:09 PM

Started with taking off the original Quadrajet for rebuilding :
7042206 QA
Pulled the original points distributor out:
1112064

**RPOZ11** · 01-27-2018, 06:12 PM

Will now begin on the brake system :
Rotor original ID code : GX

**RPOZ11** · 01-27-2018, 10:37 PM

Pulled the original calipers off and put on a set of rebuilt ones for the time being until I can get them SS sleeved; along with the original M/C.

Got the system pressurized up front.
Now onto the rears.

**RPOZ11** · 01-27-2018, 10:41 PM

Rear axle

**RPOZ11** · 01-27-2018, 11:23 PM

Another undercarriage image....

**RPOZ11** · 01-27-2018, 11:35 PM

Big Brakes

**68bowtie** · 01-28-2018, 01:25 AM

Oh wow. Super cool. Subscribed! Any other pictures of the truck or the SPID? What are the plans?

**lolife99** · 01-28-2018, 01:48 AM

Subscribing,

**RPOZ11** · 01-28-2018, 02:04 PM

Quote:

Originally Posted by 68bowtie

Oh wow. Super cool. Subscribed! Any other pictures of the truck or the SPID? What are the plans?

I think the SPID is gone; last i looked.
will look again.

Plans:
I will remove the original 402 engine and T-400 and install a 496 i just had done.
Rebuild an extra T-400 I have and add a GearVendor to it.
I'm going to pull the HO72 in it and rebuild that at a later date.
I have a 14-Bolt 3:42 Posi rear to install into it.
Just waiting on the leaf & shock mounts to be relocated on it.

Otherwise I am going go thru everything on it.

**RPOZ11** · 01-28-2018, 10:52 PM

Got into the left rear brake.
Wheel cylinder was locked up.
Disassembled & did a simple clean up.
Last image simple rebuild...
Here is the drum :

**Dieselwrencher** · 01-31-2018, 10:04 PM

Very nice Longhorn! I have one in my garage right now that is probably close to the same as yours. It is a pretty optioned up C30 Super too. Here's a pic of the spid.

**RPOZ11** · 02-01-2018, 02:55 AM

Nice!
Wish mine was a bucket seat truck.
This will be a slow rebuild
But each weekend we will get after it

**RPOZ11** · 02-01-2018, 10:29 AM

Anyone have any idea how many Longhorn trucks were assembled as C 30 builds?

**Dieselwrencher** · 02-01-2018, 07:40 PM

2450 in fleet side C30 Longhorn in 1972.

http://outintheshop.com/prodnum.html

**RPOZ11** · 02-04-2018, 12:01 AM

Quote:

Originally Posted by Dieselwrencher

2450 in fleet side C30 Longhorn in 1972.

http://outintheshop.com/prodnum.html

Cool
Thanx
But like everything;
a breakdown of vehicles optioned would be ideal and difficult to provide.

Nice resource

**RPOZ11** · 02-04-2018, 12:05 AM

I got into the right rear brake.
I'm going to need to find a replacement drum as it was scored badly beyond usable.
The wheel cylinder on this side was leaking.
Need to locate a replacement spring for the top bar below the wheel cylinder.
It broke as I removed it.
That's it for today

**Dieselwrencher** · 02-04-2018, 01:42 AM

I have 1 ho52 that is for parts. I could pull it apart and check it out for ya.

**RPOZ11** · 02-04-2018, 03:24 PM

OK, COOL... THANX

**RPOZ11** · 02-04-2018, 05:14 PM

Id like to locate some original pins with the raised 1 that are mint, undamaged, & straight.

Here is also a pic of the springs I need...

**Dieselwrencher** · 02-06-2018, 12:07 AM

I'll work on getting it dug out and getting the hub off as soon as I can.

**RPOZ11** · 02-06-2018, 02:26 AM

All good here
No rush
I found a 12" drum but I'm still digging for a 13" one.
All this takes time

**RPOZ11** · 02-10-2018, 08:13 PM

OK...
So I'm looking for a replacement 1972 issue GM 13" rear brake drum.
Part # 48716 is present in the 1972 drum; actually shows ---> 48716 4.
Here, in the pic below , is a comparison between the 1972 drum on the right and the 14-Bolt 13" drum on the left.
Both use the same shoe width.
The 14-Bolt drum is thicker where the hub is installed; maybe by approx 1/8".
The backing plates are identical except for where the pin goes thru.

We are going to try to install the 14-Bolt drum with the 1972 hub installed and see if it can be used.
The original 1972 backing plate is currently installed for this trial install.

**RPOZ11** · 02-10-2018, 09:02 PM

14-Bolt drum installed with shoes in place...
It fits without hitting anything
Factory studs are too short with the thicker drum

**RPOZ11** · 02-11-2018, 01:23 PM

While I am awaiting for some of the new replacement brake parts to arrive,
I decided next to remove the driveshaft assembly.

I don't recall ever seeing these before on prior trucks, but at the carrier bearing, the securing bolts have a bolt with a drilled hole into then using a slide pin as shown :

01-27-2018, 06:05 PM	#1
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	1972 c/30 bb longhorn Here is the start of my Longhorn rebuid/restore. This is a complete bumper to bumper original unmolested truck. Its time to do her! Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

01-27-2018, 06:09 PM	#2
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Started with taking off the original Quadrajet for rebuilding : 7042206 QA Pulled the original points distributor out: 1112064 __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

01-27-2018, 06:12 PM	#3
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Will now begin on the brake system : Rotor original ID code : GX Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

01-27-2018, 10:37 PM	#4
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Pulled the original calipers off and put on a set of rebuilt ones for the time being until I can get them SS sleeved; along with the original M/C. Got the system pressurized up front. Now onto the rears. __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS Last edited by RPOZ11; 01-28-2018 at 01:58 PM.

01-27-2018, 10:41 PM	#5
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Rear axle Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS Last edited by RPOZ11; 01-27-2018 at 11:22 PM.

01-27-2018, 11:23 PM	#6
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Another undercarriage image.... Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

01-27-2018, 11:35 PM	#7
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Big Brakes Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

01-28-2018, 01:25 AM	#8
68bowtie Senior Member Join Date: Jan 2007 Location: Turlock, CA Posts: 8,795	Re: 1972 c/30 bb longhorn Oh wow. Super cool. Subscribed! Any other pictures of the truck or the SPID? What are the plans? __________________ Please help my sister in law with her battle with cancer https://gofund.me/902f6fce Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD

01-28-2018, 01:48 AM	#9
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: 1972 c/30 bb longhorn Subscribing, __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

01-28-2018, 10:52 PM	#11
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Got into the left rear brake. Wheel cylinder was locked up. Disassembled & did a simple clean up. Last image simple rebuild... Here is the drum : Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS Last edited by RPOZ11; 02-03-2018 at 06:00 PM.

01-31-2018, 10:04 PM	#12
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1972 c/30 bb longhorn Very nice Longhorn! I have one in my garage right now that is probably close to the same as yours. It is a pretty optioned up C30 Super too. Here's a pic of the spid. Attached Images __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

02-01-2018, 02:55 AM	#13
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Nice! Wish mine was a bucket seat truck. This will be a slow rebuild But each weekend we will get after it __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS Last edited by RPOZ11; 02-01-2018 at 10:28 AM.

02-01-2018, 10:29 AM	#14
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Anyone have any idea how many Longhorn trucks were assembled as C 30 builds? __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

02-01-2018, 07:40 PM	#15
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1972 c/30 bb longhorn 2450 in fleet side C30 Longhorn in 1972. http://outintheshop.com/prodnum.html __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

02-04-2018, 12:05 AM	#17
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn I got into the right rear brake. I'm going to need to find a replacement drum as it was scored badly beyond usable. The wheel cylinder on this side was leaking. Need to locate a replacement spring for the top bar below the wheel cylinder. It broke as I removed it. That's it for today __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS



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02-04-2018, 01:42 AM	#18
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1972 c/30 bb longhorn I have 1 ho52 that is for parts. I could pull it apart and check it out for ya. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

02-04-2018, 03:24 PM	#19
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn OK, COOL... THANX __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

02-04-2018, 05:14 PM	#20
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn Id like to locate some original pins with the raised 1 that are mint, undamaged, & straight. Here is also a pic of the springs I need... Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

02-06-2018, 12:07 AM	#21
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 1972 c/30 bb longhorn I'll work on getting it dug out and getting the hub off as soon as I can. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

02-06-2018, 02:26 AM	#22
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn All good here No rush I found a 12" drum but I'm still digging for a 13" one. All this takes time __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

02-10-2018, 08:13 PM	#23
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn OK... So I'm looking for a replacement 1972 issue GM 13" rear brake drum. Part # 48716 is present in the 1972 drum; actually shows ---> 48716 4. Here, in the pic below , is a comparison between the 1972 drum on the right and the 14-Bolt 13" drum on the left. Both use the same shoe width. The 14-Bolt drum is thicker where the hub is installed; maybe by approx 1/8". The backing plates are identical except for where the pin goes thru. We are going to try to install the 14-Bolt drum with the 1972 hub installed and see if it can be used. The original 1972 backing plate is currently installed for this trial install. Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS Last edited by RPOZ11; 02-10-2018 at 08:19 PM.

02-10-2018, 09:02 PM	#24
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn 14-Bolt drum installed with shoes in place... It fits without hitting anything Factory studs are too short with the thicker drum Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

02-11-2018, 01:23 PM	#25
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	Re: 1972 c/30 bb longhorn While I am awaiting for some of the new replacement brake parts to arrive, I decided next to remove the driveshaft assembly. I don't recall ever seeing these before on prior trucks, but at the carrier bearing, the securing bolts have a bolt with a drilled hole into then using a slide pin as shown : Attached Images __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS

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