How Low Before C Notch? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

novajess1972 · 10-04-2019, 08:19 AM

Disclaimer: Before I get flamed, I looked at suspension FAQ and didn't see it.

Simple question - how low on 73-87 1/2 ton before you must do c-notch? I'm wanting at least a 3/4 or 4/5-6 but don't want to get into cutting for c-notch as I'm lowering it myself in my garage.

68Stepbed · 10-04-2019, 08:38 AM

I know for a fact you can do a 5" flip kit without a notch. There's still some room to go a tad lower, but not much. I'd guess 6" would be the max without a notch.

JHILDE · 11-15-2019, 07:14 PM

Quote:

Originally Posted by 68Stepbed

I know for a fact you can do a 5" flip kit without a notch. There's still some room to go a tad lower, but not much. I'd guess 6" would be the max without a notch.

Is that your truck?

**lolife99** · 11-16-2019, 07:34 AM

Here’s the deal,....
most flip kits will work without a c-notch.
(5”-6” drop)
If you add a rear drop shackle you will need to notch.
BUT remember,... these trucks are old.
So are the rear leaf springs sagging?
Have some of the leaves been removed from the spring pack?
There’s lots of varibles with these old trucks.
I’ve done several flip kits with no need for a c-notch.

Kudzupatch · 11-17-2019, 09:40 AM

I would think you could answer this with a little measuring. How much travel you want the rear suspension to have before it bottoms out. Because a bottoming rear suspension IS MISERABLE!

10-04-2019, 08:19 AM	#1
novajess1972 Registered User Join Date: Sep 2006 Location: Houston, Texas Posts: 190	How Low Before C Notch? Disclaimer: Before I get flamed, I looked at suspension FAQ and didn't see it. Simple question - how low on 73-87 1/2 ton before you must do c-notch? I'm wanting at least a 3/4 or 4/5-6 but don't want to get into cutting for c-notch as I'm lowering it myself in my garage. __________________ 1985 SWB Silverado 1/2 Ton 1972 Chevy SWB 1/2 Ton (sold) 1972 Chevy Chevelle SS (sold) 1971 Chevy Nova (sold) 1967 Chevy El Camino (sold) 2001 Mustang Bullitt (sold) 2019 Toyota Tundra Crewmax (daily)

10-04-2019, 08:38 AM	#2
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	Re: How Low Before C Notch? I know for a fact you can do a 5" flip kit without a notch. There's still some room to go a tad lower, but not much. I'd guess 6" would be the max without a notch. Attached Images __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system

11-16-2019, 07:34 AM	#4
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,682	Re: How Low Before C Notch? Here’s the deal,.... most flip kits will work without a c-notch. (5”-6” drop) If you add a rear drop shackle you will need to notch. BUT remember,... these trucks are old. So are the rear leaf springs sagging? Have some of the leaves been removed from the spring pack? There’s lots of varibles with these old trucks. I’ve done several flip kits with no need for a c-notch. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

11-17-2019, 09:40 AM	#5
Kudzupatch Registered User Join Date: Apr 2013 Location: GUNTERSVILLE Posts: 621	Re: How Low Before C Notch? I would think you could answer this with a little measuring. How much travel you want the rear suspension to have before it bottoms out. Because a bottoming rear suspension IS MISERABLE!



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