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#1 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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5.5/7 drop kit questions (mainly bout the c-notch)
About to get a C-notch kit from CPP, and had some questions
Do I need to remove the upper spring plate when installing the c-notch? How much clearance should I get with the 7 inch drop in the rear? How accurate are the instructions? Ive heard of some of the 'reference holes' to be off. And if anyone has any pics of their 5.5/7 drop, post em up!
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"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#2 |
Registered User
Join Date: Jun 2007
Location: Hayden Alabama
Posts: 159
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
You will not have to remove the upper spring plate to install the C-notch. I'm not sure how much clearance you'll get on the 7" drop. The instructions are ok but lacking detail.
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Mike |
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#3 |
Registered User
Join Date: Jun 2007
Location: Hayden Alabama
Posts: 159
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
I traced the profile of the C-notch onto a piece of thin cardboard and used one of the bottom reference holes to determine how far back to locate the cut out. I oversized the cutout approx. 1/4" larger than the trace.
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Mike |
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#4 |
Registered User
Join Date: Jun 2007
Location: Hayden Alabama
Posts: 159
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
I bolted on the C-notch and also welded it into place.
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Mike |
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#5 |
Registered User
Join Date: Jun 2007
Location: Hayden Alabama
Posts: 159
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
My truck is 5.5" and 8" and I have no issues with bottoming out in the rear. I don't haul anything other than a plastic tote, chairs and maybe a cooler.
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Mike |
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#6 |
Senior Member
![]() Join Date: Dec 2015
Location: Brooklet, Georgia
Posts: 831
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
Good looking truck! What size wheels and tires are those?
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#7 |
Registered User
Join Date: Jun 2007
Location: Hayden Alabama
Posts: 159
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
20x10 with 5.5bs rears 295/45-20
and 18x8 up front. 255/55-18
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Mike |
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#8 |
Registered User
![]() Join Date: Apr 2012
Location: Stillwater, Oklahoma
Posts: 874
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
That's my drop and I used the CCP notches also. I did it the hard way with the bed on because the 4/6 just wasn't enough and I had already painted.
It's pretty self explanatory once you get the notches in hand. Maybe a little massaging, but should be pretty straight forward.
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1971 C/10 SWB, 15x8 Rallys, 4.5" X 7" static drop, C-notched, 350/350, 3.73 Posi. .........A 383 and Gear Vendors are on my bucket list. 1972 GMC 4X4 K1500 Survivor - Sold No matter what problems life throws at you, your time on Earth can be incredibly fulfilling and rewarding.....if you just lower your expectations. -Phil Dunphy |
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#9 |
Registered User
Join Date: Jul 2016
Location: Baltimore, Maryland
Posts: 33
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
good info. I just ordered a load of goods from CPP and a handful of other places and had the same question regarding the c notch.
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Trash Truck 69 GMC |
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#10 |
Registered User
Join Date: Jun 2018
Location: East Pa
Posts: 6
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
anybody running stock inner fender wells with there 5.5/7 drop???
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#11 |
Still Learning
Join Date: Jul 2009
Location: Central Oklahoma
Posts: 10,108
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
I run stock inner fenders in my truck. No issues. But, it depends on what size tire you run, tire size and wheel backspace. If your tires are too tall, it may rub on big bumps.
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#12 |
Registered User
Join Date: Jun 2018
Location: East Pa
Posts: 6
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
and you are running 5.5/7 drop? for now i will be on stock 15s i want to drive it around a good bit not 100% daily it but i dont want to give up on the stock inner fender wells for a little while. I do not mind if it scraps a little on big bumps.
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#13 |
Still Learning
Join Date: Jul 2009
Location: Central Oklahoma
Posts: 10,108
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Re: 5.5/7 drop kit questions (mainly bout the c-notch)
Sorry for the delay. I am running 5.5 and 7" drop on my truck. I like the way it looks but honestly it rode better with the stock springs up front. I have 3" drop springs. Not a huge fan of the ride now.
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Tags |
1970, 5.5/7, c notch, classic perform |
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