c notch - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72GREENC10 · 12-07-2009, 06:23 PM

i am doing a c notch on my 72 c10 longbed, and i am not looking to buy a kit, i was told that a piece of pipe cut in half would work for a notch, or a square piece of metal with the bottom on it cut out will work, whick would do better?

lofly'a · 12-07-2009, 06:42 PM

i used a piece of 5" pipe split in half. if you plan to tow or haul much, you'll want to box that area round the notch as well.

72GREENC10 · 12-07-2009, 06:59 PM

Quote:

Originally Posted by lofly'a

i used a piece of 5" pipe split in half. if you plan to tow or haul much, you'll want to box that area round the notch as well.

ok, thx

**N2TRUX** · 12-07-2009, 07:10 PM

This is my 77 Cheyenne. Different frame. same principal...

72GREENC10 · 12-07-2009, 07:12 PM

Quote:

Originally Posted by N2TRUX

This is my 77 Cheyenne. Different frame. same principal...

would i lose strength in the frame, im not towing anything, but i dont want to go over a bump and watch me bed roll away.

**N2TRUX** · 12-07-2009, 07:15 PM

If anything this set up will make it stronger.

I have seen it done with the C-notch and no boxing plate. I would be concerned there, but I am prone to overdo things.

72GREENC10 · 12-07-2009, 07:21 PM

ok, and what size pipe did you use for the notch?

**lolife99** · 12-07-2009, 07:59 PM

The notch will only be as "good",... as the welder, that is doing the work.
Plus the frame is not straight in the area that you are c-notching.

**N2TRUX** · 12-07-2009, 09:39 PM

Quote:

Originally Posted by 72GREENC10

ok, and what size pipe did you use for the notch?

I believe this was 6".

**kev2809** · 12-07-2009, 10:34 PM

im gonna this same thing but ima go with 8.5" pipe. that way i can use some for the lca's also.

MXmaniac · 12-07-2009, 11:14 PM

I'm working on mine right now. I used 4-1/2" OD pipe, 1/4" thick. The ID is 4" so it's a 2" notch.

I would use round over square. Looks cleaner and I just feel like it's stronger since the stress won't be concentrated in any corners. Plus it's less vertical-up welding if you're not comfortable with out-of-position welding.

Here's mine. I finished welding it last night but didn't take any pictures of it welded up. I'm going to box the frame here too.

Scottshotrods · 12-08-2009, 12:31 AM

Quote:

Originally Posted by 72GREENC10

would i lose strength in the frame, im not towing anything, but i dont want to go over a bump and watch me bed roll away.

If you are concerned about your frame flex when you have the frame
c-knotch.You can also plate the outside of the frame where the frame
is c-knotch.We do this on alot of trucks that plan on towing trailers or
boats etc.
Justin
www.scottshotrods.com

72hotrodder · 12-08-2009, 01:16 AM

i had a 72 with a small notch like that for a long time and used it as a tow pic. i notched and boxed like everyone else but i also took a piece of 1x2 quarter in trube and layed it under the top of the frame and plug welded it a few times. made it about 2 foot long, not sure if it really helps alot but always made me feel better

72GREENC10 · 12-08-2009, 02:44 PM

thanks for the reply's, i am going to probably going to get a pipe as my notch, and plate around the notch for strength

72GREENC10 · 12-08-2009, 04:24 PM

does the bed need to be removed to c notch my rear end?

MXmaniac · 12-08-2009, 08:46 PM

I'm sure you can do it with the bed on, it just might be a little more tricky. It's nice to have all the room you need.

Hottrucks · 12-08-2009, 08:55 PM

since I just did mine about a couple months ago here is what I learned..... a piece of 5" pipe will make your notch big enough for the pumpkin to just rub the bottom of the bed floor..also take the bed off you'll need to weld the inside of the C of the frame when you put the notch in

12-07-2009, 06:23 PM	#1
72GREENC10 Registered User Join Date: Nov 2009 Location: peoria az Posts: 125	c notch i am doing a c notch on my 72 c10 longbed, and i am not looking to buy a kit, i was told that a piece of pipe cut in half would work for a notch, or a square piece of metal with the bottom on it cut out will work, whick would do better?

12-07-2009, 06:42 PM	#2
lofly'a Registered User Join Date: May 2000 Location: Alexandria, LA 71301 Posts: 1,451	Re: c notch i used a piece of 5" pipe split in half. if you plan to tow or haul much, you'll want to box that area round the notch as well. __________________ -02 avalanche (daily driver) -66 gto ragtop 389/400 (garage queen, hand-me-down from dad) -72 Tribute Trans Am (6.0LS/T56 6-speed) in progress -2003 YUKON (Wife's) -71 gmc swb fleet (current project, gonna shave everything, bags, stuff w/ 20's, gen III powertrain) -48 3100 SWB - 12/31/23 LONG TERM Project

12-07-2009, 07:10 PM	#4
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: c notch This is my 77 Cheyenne. Different frame. same principal... Attached Images __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

12-07-2009, 07:15 PM	#6
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: c notch If anything this set up will make it stronger. I have seen it done with the C-notch and no boxing plate. I would be concerned there, but I am prone to overdo things. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

12-07-2009, 07:21 PM	#7
72GREENC10 Registered User Join Date: Nov 2009 Location: peoria az Posts: 125	Re: c notch ok, and what size pipe did you use for the notch?

12-07-2009, 07:59 PM	#8
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: c notch The notch will only be as "good",... as the welder, that is doing the work. Plus the frame is not straight in the area that you are c-notching. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

12-07-2009, 10:34 PM	#10
kev2809 low n' slo Join Date: Mar 2009 Location: rosenberg, texas Posts: 5,176	Re: c notch im gonna this same thing but ima go with 8.5" pipe. that way i can use some for the lca's also. __________________ 67 1/2 ton Suburban - Project DRGNWGN. Build thread -_--_--_ _________ _--_-_ -/____\|__\|__\__ ,.,,,.,.,,.,\|_O _______ O_]

12-07-2009, 11:14 PM	#11
MXmaniac Registered User Join Date: Jan 2007 Location: Denton, Texas Posts: 356	Re: c notch I'm working on mine right now. I used 4-1/2" OD pipe, 1/4" thick. The ID is 4" so it's a 2" notch. I would use round over square. Looks cleaner and I just feel like it's stronger since the stress won't be concentrated in any corners. Plus it's less vertical-up welding if you're not comfortable with out-of-position welding. Here's mine. I finished welding it last night but didn't take any pictures of it welded up. I'm going to box the frame here too. Attached Images __________________ Andrew '69 C-20(292, 4-speed) Retired Daily Driver '64 C-10(250, 3-speed) Fixerupper '97 Frd Mustang GT(4.6L, 5-speed) Daily Driver If I only wanted two pedals I'd have bought a bicycle. Last edited by MXmaniac; 12-07-2009 at 11:17 PM.*

12-08-2009, 01:16 AM	#13
72hotrodder THE TOY STORE Join Date: Nov 2008 Location: florence al Posts: 227	Re: c notch i had a 72 with a small notch like that for a long time and used it as a tow pic. i notched and boxed like everyone else but i also took a piece of 1x2 quarter in trube and layed it under the top of the frame and plug welded it a few times. made it about 2 foot long, not sure if it really helps alot but always made me feel better __________________ having a badass truck and not driving it is like having a playboy model as a wife and not..... well you know.

12-08-2009, 02:44 PM	#14
72GREENC10 Registered User Join Date: Nov 2009 Location: peoria az Posts: 125	Re: c notch thanks for the reply's, i am going to probably going to get a pipe as my notch, and plate around the notch for strength

12-08-2009, 04:24 PM	#15
72GREENC10 Registered User Join Date: Nov 2009 Location: peoria az Posts: 125	Re: c notch does the bed need to be removed to c notch my rear end?

12-08-2009, 08:46 PM	#16
MXmaniac Registered User Join Date: Jan 2007 Location: Denton, Texas Posts: 356	Re: c notch I'm sure you can do it with the bed on, it just might be a little more tricky. It's nice to have all the room you need. __________________ Andrew '69 C-20(292, 4-speed) Retired Daily Driver '64 C-10(250, 3-speed) Fixerupper '97 F*rd Mustang GT(4.6L, 5-speed) Daily Driver If I only wanted two pedals I'd have bought a bicycle.

12-08-2009, 08:55 PM	#17
Hottrucks Redefining LowBudget Join Date: Mar 2009 Location: lebanon Cow Hampshire Posts: 4,538	Re: c notch since I just did mine about a couple months ago here is what I learned..... a piece of 5" pipe will make your notch big enough for the pumpkin to just rub the bottom of the bed floor..also take the bed off you'll need to weld the inside of the C of the frame when you put the notch in __________________ 1970 C10 CST fleetside 472 ....big dreams little cash... http://67-72chevytrucks.com/vboard/s...d.php?t=335721 SunShine Syndicate.. Mikes Sandwich Fair Run OCT 8th 2011 http://www.thesandwichfair.com/html/...auto_show.html

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