Just how low can you get with a basic c knotch - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jadedbird · 07-26-2015, 02:19 AM

Im planning on running a basic air ride system....
no seriously. really basic. so basic that if i need to add some air, ill have to run to the gas station or use a little pre-filer compressor. (i dont plan on playing with the ride height much)
I was wondering JUST how low can you go with a basic c knotch like the bolt in kits from cpp. i dont want to lay frame, but the 3/5 drop with 2" blocks just arent enough for me. so i was wondering if anyone has bagged their truck without dishing out the time and cash to modify the whole frame.
the front will be bagged on the stock a arms. yes i know they arent as flexible as the tubular aftermarkets.
pics?

**The Rocknrod** · 07-26-2015, 07:06 AM

If you C-Notch the rear - your rear end at the third member may hit the bottom of the bed before the axle tubes bottom out at the c-notch. Try it.
Your front end can go as far as you want until the cross member hits the ground. But as you eluded your upper ball joints may be over-stressed at that point.

LVPhotos · 07-26-2015, 10:34 AM

I am limited by shocks but still 2" more can be had. The pumpkin already pokes through. This is a 62 frame. So technically this would be frame contact without notch. I see no need for one if you set bump stop to keep rear out of contact.

LVPhotos · 07-26-2015, 10:43 AM

Here is ride height. Before Porterbuilt front. 295 / 45 / 18 rear 235/60/15 front and torsion bars cranked. No tub cutting or rub. Still My Rear Ride Height. Still on Schrader valves.

jadedbird · 08-28-2015, 03:32 PM

that looks real good. nearly perfect

BR3W CITY · 08-29-2015, 12:40 AM

I'm at about 6-6" drop static on a weld in notch (not their notch, but similar in size), and I'm well before hitting either the notch or the bed. IMO looks like with the 12bolt I've got, it would probably hit first on one of the bed cross braces.

jadedbird · 09-02-2015, 09:10 PM

well I planned on raising the bed about 6" just because I like the shallow bed better. but maybe ill just have to go ahead with a mild c notch just to be safe

creep · 09-04-2015, 04:12 PM

You could always put on the air ride then see how much notch you want or need.

LVPhotos · 09-04-2015, 09:40 PM

2" more to gain in rear with shocks limited travel. Bumper before frame!
See if this link works. https://m.facebook.com/justin.herrer...4994686574726/

07-26-2015, 02:19 AM	#1
jadedbird Registered User Join Date: Apr 2015 Location: So Indiana Posts: 139	Just how low can you get with a basic c knotch Im planning on running a basic air ride system.... no seriously. really basic. so basic that if i need to add some air, ill have to run to the gas station or use a little pre-filer compressor. (i dont plan on playing with the ride height much) I was wondering JUST how low can you go with a basic c knotch like the bolt in kits from cpp. i dont want to lay frame, but the 3/5 drop with 2" blocks just arent enough for me. so i was wondering if anyone has bagged their truck without dishing out the time and cash to modify the whole frame. the front will be bagged on the stock a arms. yes i know they arent as flexible as the tubular aftermarkets. pics?

07-26-2015, 07:06 AM	#2
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Just how low can you get with a basic c knotch If you C-Notch the rear - your rear end at the third member may hit the bottom of the bed before the axle tubes bottom out at the c-notch. Try it. Your front end can go as far as you want until the cross member hits the ground. But as you eluded your upper ball joints may be over-stressed at that point. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

07-26-2015, 10:34 AM	#3
LVPhotos Registered User Join Date: Jan 2013 Location: Las Vegas, NV Posts: 1,857	Re: Just how low can you get with a basic c knotch I am limited by shocks but still 2" more can be had. The pumpkin already pokes through. This is a 62 frame. So technically this would be frame contact without notch. I see no need for one if you set bump stop to keep rear out of contact. Attached Images __________________ 1962 shortbed 408cui small block, TKO 600 5-speed, bagged Porterbuilt suspension. 18" Salt Flats http://www.cardomain.com/ride/332579...t-c-k-pick-up/ http://67-72chevytrucks.com/vboard/s...d.php?t=560081

07-26-2015, 10:43 AM	#4
LVPhotos Registered User Join Date: Jan 2013 Location: Las Vegas, NV Posts: 1,857	Re: Just how low can you get with a basic c knotch Here is ride height. Before Porterbuilt front. 295 / 45 / 18 rear 235/60/15 front and torsion bars cranked. No tub cutting or rub. Still My Rear Ride Height. Still on Schrader valves. Attached Images __________________ 1962 shortbed 408cui small block, TKO 600 5-speed, bagged Porterbuilt suspension. 18" Salt Flats http://www.cardomain.com/ride/332579...t-c-k-pick-up/ http://67-72chevytrucks.com/vboard/s...d.php?t=560081

08-28-2015, 03:32 PM	#5
jadedbird Registered User Join Date: Apr 2015 Location: So Indiana Posts: 139	Re: Just how low can you get with a basic c knotch that looks real good. nearly perfect

08-29-2015, 12:40 AM	#6
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Just how low can you get with a basic c knotch I'm at about 6-6" drop static on a weld in notch (not their notch, but similar in size), and I'm well before hitting either the notch or the bed. IMO looks like with the 12bolt I've got, it would probably hit first on one of the bed cross braces. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

09-02-2015, 09:10 PM	#7
jadedbird Registered User Join Date: Apr 2015 Location: So Indiana Posts: 139	Re: Just how low can you get with a basic c knotch well I planned on raising the bed about 6" just because I like the shallow bed better. but maybe ill just have to go ahead with a mild c notch just to be safe

09-04-2015, 04:12 PM	#8
creep Registered Loser Join Date: Jun 2009 Location: Elyria, OH Posts: 1,523	Re: Just how low can you get with a basic c knotch You could always put on the air ride then see how much notch you want or need. __________________ ((..)) ((0)) '63 GMC lwb, 383, th350, lays frame, genuine patina. The Build Thread - http://67-72chevytrucks.com/vboard/s...d.php?t=374267 '88 Astro cargo bagged, shaved, phantom grille. SOLD '50 Chevy 2 door sedan awaiting attention. 2014 Silverado Ext cab, 5.3, daily driver.

09-04-2015, 09:40 PM	#9
LVPhotos Registered User Join Date: Jan 2013 Location: Las Vegas, NV Posts: 1,857	Re: Just how low can you get with a basic c knotch 2" more to gain in rear with shocks limited travel. Bumper before frame! See if this link works. https://m.facebook.com/justin.herrer...4994686574726/ Attached Images __________________ 1962 shortbed 408cui small block, TKO 600 5-speed, bagged Porterbuilt suspension. 18" Salt Flats http://www.cardomain.com/ride/332579...t-c-k-pick-up/ http://67-72chevytrucks.com/vboard/s...d.php?t=560081 Last edited by LVPhotos; 09-04-2015 at 10:00 PM.



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