C20 Front and rear stock replacement coil springs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chilly178 · 12-01-2018, 11:51 AM

Hi I got some questions on coils springs for my 72 C20. I see a lot of vendors here on the board sell them by small block or big block. That's fine but what the problem is that they don't differentiate from C10 and C20. I don't want to put C10 springs in my C20, but that doesn't mean i'm going to put the big block ones in because I have a small block. Does anyone know of some good quality springs that are for sure for a C20, Stock height and a small block. Also looking for rears as well. Thanks.

PepperTreeGarage · 12-01-2018, 06:08 PM

Got much of my stuff here: https://www.performanceonline.com/ch...springs-60-87/ for my '72 C20. Keep in mind that most of these old trucks have "Spring Sag". My front springs had approx. 1/2 inch of it. Rears are leafs, so I re-used them, but did install helper air bags, which are also available for the trailing arm trucks.

**DA71Grande** · 12-01-2018, 06:36 PM

I replaced my front and rear this summer and went with moog.

https://www.moog-suspension-parts.co...kup-68-74-moog

firedemon · 12-01-2018, 10:54 PM

im sure someone with a c/20 might know for sure but I thought the heavy duty c/10 springs were c/20 springs

Mike C · 12-02-2018, 09:11 AM

Eaton Detroit Spring catalogs and makes all sorts of different springs both stock, modified, or complete aftermarket style. I had them make me a de-arched set of 4 leaf Z/28 springs for my Camaro years ago and was quite pleased. Give them a call and talk to a person about your needs.

https://www.eatondetroitspring.com/

Chilly178 · 03-23-2019, 06:54 PM

Quote:

Originally Posted by DA71Grande

I replaced my front and rear this summer and went with moog.

https://www.moog-suspension-parts.co...kup-68-74-moog

Can't find the rears, what is the part number/link?

**DA71Grande** · 03-23-2019, 08:15 PM

Quote:

Originally Posted by Chilly178

Can't find the rears, what is the part number/link?

https://www.moog-suspension-parts.co...20_pickup_1971

Chilly178 · 03-23-2019, 08:28 PM

Quote:

Originally Posted by DA71Grande

https://www.moog-suspension-parts.co...20_pickup_1971

Thank you! Did you go with the heavy duty or stock? Why or why not?

**DA71Grande** · 03-23-2019, 08:44 PM

Quote:

Originally Posted by Chilly178

Thank you! Did you go with the heavy duty or stock? Why or why not?

Just went with stock but variable rate coil springs in the rear just to keep the ride comfort and the constant in the front. (Only option for the 6.6)

https://www.rockauto.com/en/catalog/...il+spring,7512

12-01-2018, 11:51 AM	#1
Chilly178 Registered User Join Date: May 2016 Location: Green Bay, WI Posts: 129	C20 Front and rear stock replacement coil springs Hi I got some questions on coils springs for my 72 C20. I see a lot of vendors here on the board sell them by small block or big block. That's fine but what the problem is that they don't differentiate from C10 and C20. I don't want to put C10 springs in my C20, but that doesn't mean i'm going to put the big block ones in because I have a small block. Does anyone know of some good quality springs that are for sure for a C20, Stock height and a small block. Also looking for rears as well. Thanks.

12-01-2018, 06:08 PM	#2
PepperTreeGarage Registered User Join Date: Jan 2014 Location: SoCal Posts: 281	Re: C20 Front and rear stock replacement coil springs Got much of my stuff here: https://www.performanceonline.com/ch...springs-60-87/ for my '72 C20. Keep in mind that most of these old trucks have "Spring Sag". My front springs had approx. 1/2 inch of it. Rears are leafs, so I re-used them, but did install helper air bags, which are also available for the trailing arm trucks. Attached Images

12-01-2018, 06:36 PM	#3
DA71Grande Senior Member Join Date: Aug 2018 Location: Liberty Twp, Ohio Posts: 335	Re: C20 Front and rear stock replacement coil springs I replaced my front and rear this summer and went with moog. https://www.moog-suspension-parts.co...kup-68-74-moog __________________ Doug 71 Sierra Grande C25 16 Sierra 2500HD All Terrain 23 Chevy Tahoe Z71 https://paypal.me/digdug7131?locale.x=en_US Last edited by DA71Grande; 12-01-2018 at 06:37 PM. Reason: .

12-01-2018, 10:54 PM	#4
firedemon Registered User Join Date: Jun 2015 Location: @ Posts: 890	Re: C20 Front and rear stock replacement coil springs im sure someone with a c/20 might know for sure but I thought the heavy duty c/10 springs were c/20 springs

12-02-2018, 09:11 AM	#5
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,714	Re: C20 Front and rear stock replacement coil springs Eaton Detroit Spring catalogs and makes all sorts of different springs both stock, modified, or complete aftermarket style. I had them make me a de-arched set of 4 leaf Z/28 springs for my Camaro years ago and was quite pleased. Give them a call and talk to a person about your needs. https://www.eatondetroitspring.com/ __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax



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