What Size Drop??????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jgrisafi · 05-12-2008, 08:31 AM

How far can you drop the rearend of a 69' C10 before having to c-notch the frame? I was thinking about 2 1/2" drop spindles and 1" drop coils up front, then in the back 4" drop coils and 1" or 2" blocks in the back. Does this seem okay to do or even make sense?

72LoBurb · 05-12-2008, 08:44 AM

You won't get that much of a drop without a c-notch in the rear. Maybe just the 4" spring, unless you want to hammer the rearend off the frame rails.

jgrisafi · 05-12-2008, 09:03 AM

Let me ask this............I want to get a 6" drop out back, what else do I need to use with the 4" coils? And can I do this without a c-notch out back? I am trying to get a rake stance.

72LoBurb · 05-12-2008, 10:20 AM

Are you totally against doing a c-notch?
My 'burb has a little over 6" of drop on the rear and 4.5" in the front, but I have a CPP bolt-in c-notch. Prior to putting in the notch, the rear suspension travel was nearly non-existant.
You can do a block with the spring, but I don't think I would do that much drop without a c-notch, to achieve the stance you want.

Riveted1 · 05-12-2008, 11:30 AM

Half the people say they didn't need a notch w/a 6" drop, the other half will say they needed one. If you do some searching, you will see that there has been a lot of discussion about this exact subject.

4" coils and 2" blocks will work, or you could just buy 6" coils.

that won't give you much of a rake w/2.5" spindles and 1" coils up front. Stance

05-12-2008, 08:31 AM	#1
jgrisafi Velocity Speed Shop Join Date: Jul 2007 Location: Cypress, TX Posts: 172	What Size Drop??????? How far can you drop the rearend of a 69' C10 before having to c-notch the frame? I was thinking about 2 1/2" drop spindles and 1" drop coils up front, then in the back 4" drop coils and 1" or 2" blocks in the back. Does this seem okay to do or even make sense?

05-12-2008, 08:44 AM	#2
72LoBurb Yup, I'm comp-useless Join Date: May 2005 Location: Edmonton,Alta,Canada Posts: 360	Re: What Size Drop??????? You won't get that much of a drop without a c-notch in the rear. Maybe just the 4" spring, unless you want to hammer the rearend off the frame rails. __________________ 1972 Chev Suburban(ongoing driveable project) 2010 Harley Wide Glide 1996 Subaru Outback(daily beater) !992 T-Bird Super Coupe(yet, another project) 1995 GMC Suburban(will be for sale, soon) 1995 Dodge 3500 Club Cab(Cummins 12V) 2001 Freightliner(Cummins Powered Money Maker)

05-12-2008, 09:03 AM	#3
jgrisafi Velocity Speed Shop Join Date: Jul 2007 Location: Cypress, TX Posts: 172	Re: What Size Drop??????? Let me ask this............I want to get a 6" drop out back, what else do I need to use with the 4" coils? And can I do this without a c-notch out back? I am trying to get a rake stance.

05-12-2008, 10:20 AM	#4
72LoBurb Yup, I'm comp-useless Join Date: May 2005 Location: Edmonton,Alta,Canada Posts: 360	Re: What Size Drop??????? Are you totally against doing a c-notch? My 'burb has a little over 6" of drop on the rear and 4.5" in the front, but I have a CPP bolt-in c-notch. Prior to putting in the notch, the rear suspension travel was nearly non-existant. You can do a block with the spring, but I don't think I would do that much drop without a c-notch, to achieve the stance you want. __________________ 1972 Chev Suburban(ongoing driveable project) 2010 Harley Wide Glide 1996 Subaru Outback(daily beater) !992 T-Bird Super Coupe(yet, another project) 1995 GMC Suburban(will be for sale, soon) 1995 Dodge 3500 Club Cab(Cummins 12V) 2001 Freightliner(Cummins Powered Money Maker)

05-12-2008, 11:30 AM	#5
Riveted1 Tasty Cakes! Join Date: Apr 2003 Location: Gilbert, AZ Posts: 2,112	Re: What Size Drop??????? Half the people say they didn't need a notch w/a 6" drop, the other half will say they needed one. If you do some searching, you will see that there has been a lot of discussion about this exact subject. 4" coils and 2" blocks will work, or you could just buy 6" coils. that won't give you much of a rake w/2.5" spindles and 1" coils up front. Stance __________________ I'm a little and a lot Ground beef: A cow with no legs. ---------------- '66 Chevy SWB "Penny" '67 Chevy Big Window SWB- aka "Pearl" '72 Burb- "Betty" "It's not a hearse dammit" '99 Chevy Ext. cab Silverado Last edited by Riveted1; 05-12-2008 at 11:34 AM.

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