67 C 30 heavy duty - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**JDL** · 02-11-2026, 05:34 PM

I just got this one in kind of unusual truck.

**dagnabbitt** · 02-11-2026, 06:02 PM

Pretty cool truck, I can imagine all kinds of things to do with a rig like that.

too much stuff · 02-11-2026, 10:14 PM

Looks fairly solid for a rust belt truck. Quite the gears and nice to see marker lights listed. Good find.

**c30** · 02-12-2026, 01:53 PM

It's got five lug split rims.
My 67 C30 came with 8 lug solid rims. At least I think it did.
I don't ever remember seeing those rims. Anybody got input on that?
What size tires are on that?

**c30** · 02-12-2026, 01:57 PM

small block or 6 cylinder?

**Steeveedee** · 02-12-2026, 03:03 PM

See this doc. "S" was six, "E" was eight cylinder. An eight wasn't necessarily a small block.

For optional wheels, go to this site and scroll down to the "Q" designation.
https://outintheshop.com/options.html

68panelman · 02-12-2026, 06:33 PM

Quote:

Originally Posted by c30

It's got five lug split rims.
My 67 C30 came with 8 lug solid rims. At least I think it did.
I don't ever remember seeing those rims. Anybody got input on that?
What size tires are on that?

Should be 19.5 wheels. You have the HD HO110 rear with 14000 GVW

**JDL** · 02-12-2026, 06:52 PM

Quote:

Originally Posted by 68panelman

Should be 19.5 wheels. You have the HD HO110 rear with 14000 GVW

It has 20 10 lug on the back and 18 5 lug on the front

Quote:

Originally Posted by c30

small block or 6 cylinder?

It has a SB v8 not original

**Steeveedee** · 02-12-2026, 08:35 PM

I guess the brakes and tires and wheels are automatic when the 157" chassis is ordered? This thing is a beast!

**67 twins** · 02-12-2026, 10:54 PM

Quote:

Originally Posted by Steeveedee

See this doc. "S" was six, "E" was eight cylinder. An eight wasn't necessarily a small block.

For optional wheels, go to this site and scroll down to the "Q" designation.
https://outintheshop.com/options.html

No big blocks in trucks in 67. So it would have been a small block.

**Steeveedee** · 02-12-2026, 11:27 PM

Quote:

Originally Posted by 67 twins

No big blocks in trucks in 67. So it would have been a small block.

OK, at least for C10-C30, right? Revving the snot out of that 283...since the SPID doesn't say 327.

**67 twins** · 02-12-2026, 11:48 PM

Quote:

Originally Posted by Steeveedee

OK, at least for C10-C30, right? Revving the snot out of that 283...since the SPID doesn't say 327.

Good thing it's a short stroke engine with those rear gears. I can just hear that thing screaming!

jumpsoffrock · 02-13-2026, 12:25 AM

Maybe they wanted a C40 without the larger frame etc?

Neat old truck, from back when you could order whatever you could dream of.

**Bob B.** · 02-13-2026, 02:01 AM

That's what I was thinking, it's almost a C40. What's the GVW on the VIN plate?

**c30** · 02-13-2026, 10:57 AM

There is a 68 c50 on Chicago Craigslist today, 2/13/26, that has the same rims. Five lug in front and 10 lug in back. I'm thinking this chassis is heavier than a 1 ton.

**kwmech** · 02-13-2026, 01:19 PM

My flatbed was the same. It came to me as a Class B motorhome. 19.5 rims 14k GVW. 396 engine, 157 wb. The motorhome part of the truck had a lot of rot so it met its fate with a sawsall and the dump. It was however fully loaded. I think the only thing missing was cruise control. Had Jeff remake me a spid. I pulled out the 396 and put in a 454 and added a gear vendor unit to the back of the t400. I cut off 2 feet of frame in the back and I still have a 10' long deck on it. Got rid of the HO72 and went with a D70hd and swapped out the fronts for 8 lug also. Converted to 8 lug and 16'' rims

02-11-2026, 05:34 PM	#1
JDL Senior Member Join Date: Sep 2000 Location: Agency IA. Posts: 1,981	67 C 30 heavy duty I just got this one in kind of unusual truck. Attached Images __________________ 72 Chevy short step side with 454 air and tilt. 72 nova project car 63 chevy II drag car Agency Iowa

02-11-2026, 06:02 PM	#2
dagnabbitt Registered User Join Date: Dec 2014 Location: Edmonton Alberta Posts: 1,758	Re: 67 C 30 heavy duty Pretty cool truck, I can imagine all kinds of things to do with a rig like that. __________________ DAVE Edmonton, Alberta 1959 Apache 1967 K20 1968 C20 1970 C10 1972 GMC 2500 1981 C10

02-11-2026, 10:14 PM	#3
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 14,003	Re: 67 C 30 heavy duty Looks fairly solid for a rust belt truck. Quite the gears and nice to see marker lights listed. Good find. __________________ 67 gmc custom lwb dakota truck. Sold...And bought back... And sold again... 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto

02-12-2026, 01:53 PM	#4
c30 Active Member Join Date: Feb 2015 Location: chicagoland Posts: 108	Re: 67 C 30 heavy duty It's got five lug split rims. My 67 C30 came with 8 lug solid rims. At least I think it did. I don't ever remember seeing those rims. Anybody got input on that? What size tires are on that? Last edited by c30; 02-12-2026 at 01:55 PM. Reason: because

02-12-2026, 01:57 PM	#5
c30 Active Member Join Date: Feb 2015 Location: chicagoland Posts: 108	Re: 67 C 30 heavy duty small block or 6 cylinder?

02-12-2026, 03:03 PM	#6
Steeveedee Ram-A-Lam-A-Ding-Dong Join Date: Jan 2013 Location: Simi Valley, CA Posts: 11,899	Re: 67 C 30 heavy duty See this doc. "S" was six, "E" was eight cylinder. An eight wasn't necessarily a small block. For optional wheels, go to this site and scroll down to the "Q" designation. https://outintheshop.com/options.html Attached Images __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA Last edited by Steeveedee; 02-12-2026 at 03:17 PM. Reason: added wheel info

02-12-2026, 08:35 PM	#9
Steeveedee Ram-A-Lam-A-Ding-Dong Join Date: Jan 2013 Location: Simi Valley, CA Posts: 11,899	Re: 67 C 30 heavy duty I guess the brakes and tires and wheels are automatic when the 157" chassis is ordered? This thing is a beast! __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA

02-13-2026, 12:25 AM	#13
jumpsoffrock Registered User Join Date: Apr 2014 Location: California Posts: 1,126	Re: 67 C 30 heavy duty Maybe they wanted a C40 without the larger frame etc? Neat old truck, from back when you could order whatever you could dream of.

02-13-2026, 02:01 AM	#14
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,457	Re: 67 C 30 heavy duty That's what I was thinking, it's almost a C40. What's the GVW on the VIN plate? __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.

02-13-2026, 10:57 AM	#15
c30 Active Member Join Date: Feb 2015 Location: chicagoland Posts: 108	Re: 67 C 30 heavy duty There is a 68 c50 on Chicago Craigslist today, 2/13/26, that has the same rims. Five lug in front and 10 lug in back. I'm thinking this chassis is heavier than a 1 ton.

02-13-2026, 01:19 PM	#16
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,941	Re: 67 C 30 heavy duty My flatbed was the same. It came to me as a Class B motorhome. 19.5 rims 14k GVW. 396 engine, 157 wb. The motorhome part of the truck had a lot of rot so it met its fate with a sawsall and the dump. It was however fully loaded. I think the only thing missing was cruise control. Had Jeff remake me a spid. I pulled out the 396 and put in a 454 and added a gear vendor unit to the back of the t400. I cut off 2 feet of frame in the back and I still have a 10' long deck on it. Got rid of the HO72 and went with a D70hd and swapped out the fronts for 8 lug also. Converted to 8 lug and 16'' rims Attached Images



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