How low with a cpp c-notch - The 1947 - Present Chevrolet & GMC Truck Message Board Network

swissfacade · 11-30-2007, 09:49 AM

I wanted to know how much can I lower my 69 Suburban with a cpp c-notch, It states that I need one for a 4" to 5" drop in the rear, I want to go 6.5" to 7". will this work? If I need a taller notch, who makes one with the correct frame shape.

C10-Driver · 11-30-2007, 10:32 AM

You should have no problem at all with a c-notch and a 7" drop. The pumpkin on the rear end will bottom out on the floor long before the axle bottoms out in the notch. I have air bags on my truck and wanted to "slam" it as much as possible so I bought a short compact-style bumpstop to install in the notch. To make a long story short, I had to use a taller bump stop because of the differential.

c10addict · 12-01-2007, 07:57 AM

If you want to go lower KP Components makes a formed notch for the trucks.. I have one ordered right now.. Just search KP step notch on here and you will see lots of pics..

smbrouss70 · 12-01-2007, 03:37 PM

I have a 8" static drop in the back of my truck right now with a CPP bolt-in c-notch and it rides great. No clearance problems.

XXL · 12-01-2007, 09:39 PM

Quote:

Originally Posted by smbrouss70

I have a 8" static drop in the back of my truck right now with a CPP bolt-in c-notch and it rides great. No clearance problems.

Unlike the truck bed, the Suburban floor will limit pretty quickly, IIRC.

Jcentsr6 · 12-02-2007, 08:34 PM

Quote:

Originally Posted by smbrouss70

I have a 8" static drop in the back of my truck right now with a CPP bolt-in c-notch and it rides great. No clearance problems.

Does your bed hit?? I want to go lower...I have air ride tech bags...want a ccp step notch too, but afraid the pumpkin will hit bed floor. Please advise.

XXL · 12-02-2007, 08:44 PM

Quote:

Originally Posted by Jcentsr6

Does your bed hit?? I want to go lower...I have air ride tech bags...want a ccp step notch too, but afraid the pumpkin will hit bed floor. Please advise.

Pumpkin will hit bed floor before you use all of a c-notch. Wood bed is worse than steel bed, but both are affected.

smbrouss70 · 12-04-2007, 05:41 PM

XXL is correct, it will hit the floor before you bottom out in the notch. You could get some taller bump-stops to keep it from hitting, it would still get you about 1.5-2 inches lower than no notch.

Jcentsr6 · 12-04-2007, 07:20 PM

Quote:

Originally Posted by smbrouss70

XXL is correct, it will hit the floor before you bottom out in the notch. You could get some taller bump-stops to keep it from hitting, it would still get you about 1.5-2 inches lower than no notch.

How hard to install the notch kit? I want the xtra 1.5"

smbrouss70 · 12-04-2007, 09:25 PM

It's not that bad, with the exception of getting the rivets out of the way. Rokcrln did a good how-to on here, the directions that come with it SUCK!

http://67-72chevytrucks.com/vboard/s...d.php?t=195566

c10addict · 12-04-2007, 09:39 PM

mine is set up that the top of the rear end housing is just touching the bottom of the bed "steel" floor....

Rollie396 · 12-04-2007, 11:33 PM

For what it's worth,I built my own 2.5" notch and when aired out there's 1/8" clearance between the axle and notch (no bumpstops just yet) and the dif sticks through the bed floor 3/4".

skunkwerx · 12-13-2007, 03:16 PM

i have a cpp c-notch on mine.

ZBS 64 · 12-13-2007, 03:46 PM

You can do an under bed weld in notch

XXL · 12-13-2007, 04:49 PM

Quote:

Originally Posted by ZBS 64

You can do an under bed weld in notch

Why? There's no gain in clearance beyond what you get with the CPP-type bolt-in.

**Hart_Rod** · 12-16-2007, 04:35 PM

Quote:

Originally Posted by swissfacade

I wanted to know how much can I lower my 69 Suburban with a cpp c-notch, It states that I need one for a 4" to 5" drop in the rear, I want to go 6.5" to 7". will this work? If I need a taller notch, who makes one with the correct frame shape.

This is my 69 Burb with a CPP bolt in.....

11-30-2007, 09:49 AM	#1
swissfacade Registered User Join Date: Jun 2004 Location: Simpsonville, South Carolina Posts: 72	How low with a cpp c-notch I wanted to know how much can I lower my 69 Suburban with a cpp c-notch, It states that I need one for a 4" to 5" drop in the rear, I want to go 6.5" to 7". will this work? If I need a taller notch, who makes one with the correct frame shape. __________________ John 69 Suburban 350 V8, 400 Trans, Lowered, 4w Disc Brakes, 55 belair dash 87 & 88 Conquest TSi 2004 Jeep Liberty Renegrade

11-30-2007, 10:32 AM	#2
C10-Driver Chevy Truck Addict Join Date: Aug 2006 Location: Kelowna, BC Posts: 1,176	Re: How low with a cpp c-notch You should have no problem at all with a c-notch and a 7" drop. The pumpkin on the rear end will bottom out on the floor long before the axle bottoms out in the notch. I have air bags on my truck and wanted to "slam" it as much as possible so I bought a short compact-style bumpstop to install in the notch. To make a long story short, I had to use a taller bump stop because of the differential. __________________ . 1970 Chev C/10 SWB, 355 SBC, 700R4, 3.73 Posi, Air Ride (Click to view Build Thread) (SOLD) 1978 Chevy C/10 SWB 1970 Pontiac Lemans .

12-01-2007, 07:57 AM	#3
c10addict Registered User Join Date: Aug 2007 Location: pittsburgh pa Posts: 1,970	Re: How low with a cpp c-notch If you want to go lower KP Components makes a formed notch for the trucks.. I have one ordered right now.. Just search KP step notch on here and you will see lots of pics.. __________________ 68 C10 Shorty TPI,Bagged, and all the good stuff. Classic trucks feature June 06, On the cover of Jegs Christmas Catalog 08 67 C10 Shorty Shop truck project Bagged and Z'd under destruction and getting nowhere fast. 64 C10 Shop Truck/Daily driver, Bagged, Dropmember, SOLD!!!! Gone but not forgotten.. 54 GMC under the knife getting a S10 chassis swap and bagged. See my build thread... 07 GMC Sierra 5/7 drop, 22's and 24's Air ride on my mind.. http://67-72chevytrucks.com/vboard/s...d.php?t=339340 See pics of my trucks in my profile

12-01-2007, 03:37 PM	#4
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,781	Re: How low with a cpp c-notch I have a 8" static drop in the back of my truck right now with a CPP bolt-in c-notch and it rides great. No clearance problems. __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build

12-04-2007, 05:41 PM	#8
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,781	Re: How low with a cpp c-notch XXL is correct, it will hit the floor before you bottom out in the notch. You could get some taller bump-stops to keep it from hitting, it would still get you about 1.5-2 inches lower than no notch. __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build Last edited by smbrouss70; 12-04-2007 at 05:41 PM.

12-04-2007, 09:25 PM	#10
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,781	Re: How low with a cpp c-notch It's not that bad, with the exception of getting the rivets out of the way. Rokcrln did a good how-to on here, the directions that come with it SUCK! http://67-72chevytrucks.com/vboard/s...d.php?t=195566 __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build

12-04-2007, 09:39 PM	#11
c10addict Registered User Join Date: Aug 2007 Location: pittsburgh pa Posts: 1,970	Re: How low with a cpp c-notch mine is set up that the top of the rear end housing is just touching the bottom of the bed "steel" floor.... Attached Images __________________ 68 C10 Shorty TPI,Bagged, and all the good stuff. Classic trucks feature June 06, On the cover of Jegs Christmas Catalog 08 67 C10 Shorty Shop truck project Bagged and Z'd under destruction and getting nowhere fast. 64 C10 Shop Truck/Daily driver, Bagged, Dropmember, SOLD!!!! Gone but not forgotten.. 54 GMC under the knife getting a S10 chassis swap and bagged. See my build thread... 07 GMC Sierra 5/7 drop, 22's and 24's Air ride on my mind.. http://67-72chevytrucks.com/vboard/s...d.php?t=339340 See pics of my trucks in my profile

12-04-2007, 11:33 PM	#12
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	Re: How low with a cpp c-notch For what it's worth,I built my own 2.5" notch and when aired out there's 1/8" clearance between the axle and notch (no bumpstops just yet) and the dif sticks through the bed floor 3/4". Attached Images __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics

12-13-2007, 03:16 PM	#13
skunkwerx Registered User Join Date: Oct 2006 Location: oklahoma Posts: 238	Re: How low with a cpp c-notch i have a cpp c-notch on mine. Attached Images

12-13-2007, 03:46 PM	#14
ZBS 64 Registered User Join Date: Jun 2007 Location: Port Orchard Washington Posts: 46	Re: How low with a cpp c-notch You can do an under bed weld in notch



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