Front Coil Springs....Same for 73-87? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

svgould · 10-01-2007, 08:09 PM

Hi,

Are the 67-72 coil springs for the front intechangeable with 1973-87 coil fronts? I know you can swap the entire front end, but was wondering if you could swap just the coil springs?

Thanks

*project 67 sub* · 10-02-2007, 12:35 AM

yes they are interchangeable, i have them on my burb, but it also has the newer crossmember as well.

SCOTI · 10-02-2007, 09:58 AM

My buddy did this swap also (73 & later front suspension swap w/o swapping the c.member). When we compared the front coils, the 68 coils were shorter than the newer springs (both un-cut factory stuff).

He went w/the 68 coils since they were shorter & we were trying to lower the truck.

CHYNSPR · 10-02-2007, 10:29 AM

Can you swap the '73+ a-arms and spindle to a '72 crossmember? I thought the whole unit would have to be swapped in.

SCOTI · 10-02-2007, 10:44 AM

Quote:

Originally Posted by CHYNSPR

Can you swap the '73+ a-arms and spindle to a '72 crossmember? I thought the whole unit would have to be swapped in.

Yes, the a-arms, spindles, & brakes can be swapped by themselves. Swapping the crossmember is extra work unless your swapping the entire assembly as a unit (meaning nothing needs to be taken apart for rebuilding).

CHYNSPR · 10-02-2007, 01:53 PM

I wasn't aware, thanks for the info. My understanding is the later lower arms have a more suitable shape for bags, as well as rebuild parts are considerably cheaper. I am in the process of completely rebuilding the front end, so it sounds like a good time to swap to the '73+ arms.

Are there any other details I need to watch for?

Thanks again!

SCOTI · 10-02-2007, 10:24 PM

Quote:

Originally Posted by CHYNSPR

I wasn't aware, thanks for the info. My understanding is the later lower arms have a more suitable shape for bags, as well as rebuild parts are considerably cheaper. I am in the process of completely rebuilding the front end, so it sounds like a good time to swap to the '73+ arms.

Are there any other details I need to watch for?

Thanks again!

The 73 & later arms were installed with 9/16" u-bolts vs. the 67~72 1/2" u-bolts. You'll need to drill the holes out if you want to use the bigger u-bolts (think light-duty vs. HD).

CHYNSPR · 10-02-2007, 10:49 PM

I appreciate the help, I am on the hunt for some later arms.

Thanks, SCOTI

SCOTI · 10-02-2007, 11:38 PM

Quote:

Originally Posted by CHYNSPR

I appreciate the help, I am on the hunt for some later arms.

Thanks, SCOTI

Get the drag/center-link when you get the arms. Then you can use 73-up tie-rod ends too.

CHYNSPR · 10-03-2007, 01:40 PM

Will do, thanks again!!!

(I love this site)

10-01-2007, 08:09 PM	#1
svgould Active Member Join Date: Jul 2003 Location: Boise Idaho Posts: 296	Front Coil Springs....Same for 73-87? Hi, Are the 67-72 coil springs for the front intechangeable with 1973-87 coil fronts? I know you can swap the entire front end, but was wondering if you could swap just the coil springs? Thanks __________________ 1971 SWB SOLD LT1 motor / 4l60E transmission ECE front dropped spindles with stock height springs 4" rear springs Coys Wheels 18 x 8 all the way around Hydratech hydroboost brake system

10-02-2007, 12:35 AM	#2
project 67 sub Account Suspended Join Date: Mar 2007 Location: san bernardino ca. everywhere Posts: 3,938	Re: Front Coil Springs....Same for 73-87? yes they are interchangeable, i have them on my burb, but it also has the newer crossmember as well.

10-02-2007, 09:58 AM	#3
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,082	Re: Front Coil Springs....Same for 73-87? My buddy did this swap also (73 & later front suspension swap w/o swapping the c.member). When we compared the front coils, the 68 coils were shorter than the newer springs (both un-cut factory stuff). He went w/the 68 coils since they were shorter & we were trying to lower the truck. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.* Last edited by SCOTI; 10-02-2007 at 09:59 AM.

10-02-2007, 10:29 AM	#4
CHYNSPR Registered User Join Date: Jan 2006 Location: Grande Prairie, Alberta Posts: 202	Re: Front Coil Springs....Same for 73-87? Can you swap the '73+ a-arms and spindle to a '72 crossmember? I thought the whole unit would have to be swapped in.

10-02-2007, 01:53 PM	#6
CHYNSPR Registered User Join Date: Jan 2006 Location: Grande Prairie, Alberta Posts: 202	Re: Front Coil Springs....Same for 73-87? I wasn't aware, thanks for the info. My understanding is the later lower arms have a more suitable shape for bags, as well as rebuild parts are considerably cheaper. I am in the process of completely rebuilding the front end, so it sounds like a good time to swap to the '73+ arms. Are there any other details I need to watch for? Thanks again! Last edited by CHYNSPR; 10-02-2007 at 01:53 PM.

10-02-2007, 10:49 PM	#8
CHYNSPR Registered User Join Date: Jan 2006 Location: Grande Prairie, Alberta Posts: 202	Re: Front Coil Springs....Same for 73-87? I appreciate the help, I am on the hunt for some later arms. Thanks, SCOTI

10-03-2007, 01:40 PM	#10
CHYNSPR Registered User Join Date: Jan 2006 Location: Grande Prairie, Alberta Posts: 202	Re: Front Coil Springs....Same for 73-87? Will do, thanks again!!! (I love this site)



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