The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Suspension

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-29-2018, 02:24 PM   #1
dondb
Junior Member
 
Join Date: Mar 2018
Location: nh
Posts: 81
stock vs after market coil springs

Truck is a 69 c10 LB step side, original 307 three on the tree.

I just purchased a front drum to disk brake conversion kit with 2 1/2 inch lowering spindles. I also bought 4 new KYB gas adjust shocks.

Question I have is - while i have the U/L a arms apart do i keep same original coil (seems to be fine) buy a new moog coil or after market coil. I don't want to lower it any more then the the spindle will accomplish and plan to lower rear with a 4 inch lowering coil. I realize my original coil may have sagged a little and little rack is fine. Bottom line is are there any pros or cons to mixing and matching coils with original coil or new MOOG in front and after markets in rear. Not a big fan of spending money for new parts just because their shiny they need a benefit.
__________________
1969 Pro Tour Camaro
2002 SS LE Rag Top #937
dondb is offline   Reply With Quote
Old 11-30-2018, 07:36 AM   #2
PGSigns
Senior Member
 
PGSigns's Avatar
 
Join Date: Jan 2011
Location: Hayes Va
Posts: 3,860
Re: stock vs after market coil springs

I would put it together and see how it sits. If the truck looks good drive the wheels off it. If the front is a bit low for you buy springs.
Jimmy
__________________
60 to 66 Chevy and GMC window decals
http://67-72chevytrucks.com/vboard/s...d.php?t=661131
Good friends, good food and a hotrod what else do you need?
1966 BBW long fleet Daily driver
1965 BBW short fleet Sold and going to a good home
1965 Suburban
2003 3500 Duramax
2005 Ultra Classic
PGSigns is offline   Reply With Quote
Old 11-30-2018, 06:19 PM   #3
dondb
Junior Member
 
Join Date: Mar 2018
Location: nh
Posts: 81
Re: stock vs after market coil springs

Thanks for the reply Jimmy....that's what i'll do!
__________________
1969 Pro Tour Camaro
2002 SS LE Rag Top #937
dondb is offline   Reply With Quote
Old 01-11-2019, 09:44 PM   #4
dondb
Junior Member
 
Join Date: Mar 2018
Location: nh
Posts: 81
Re: stock vs after market coil springs

Rear coil is out and ECE 4" drop coil side by side. The coil i took out is 12 1/2" in height, stock for a 69 c10 is 12 1/4? The diameter of the coil is 3/4", the ECE is 1/16 of an inch less. From the picture did i have heavy duty springs in my truck?

Name:  IMG_0602.jpg
Views: 77
Size:  51.5 KB
__________________
1969 Pro Tour Camaro
2002 SS LE Rag Top #937
dondb is offline   Reply With Quote
Old 01-14-2019, 10:04 AM   #5
68Stepbed
Living The Dream
 
68Stepbed's Avatar
 
Join Date: Mar 2005
Location: Sevierville,Tennessee
Posts: 5,341
Re: stock vs after market coil springs

Keep in mind that the original coil springs have had 50 years to compress and sag. When I did a disc brake swap several years ago, I wanted to lower mine a just a bit more than it sat at the time. I put a 1" drop spring in the front and 2" drop springs in the rear. The result was the truck sitting about 2" higher all the way around!

My suggestion is look at other trucks with drops. Figure out which drop you like and get the kit with all springs, spindles, etc. to get the desired drop. Or as mentioned, put it back together with the stock springs and see if you like it that way before spending more money.
__________________
Matt

68 C10 stepside, LS1/700R4, TCI Engineering suspension system
68Stepbed is offline   Reply With Quote
Old 01-14-2019, 03:52 PM   #6
dondb
Junior Member
 
Join Date: Mar 2018
Location: nh
Posts: 81
Re: stock vs after market coil springs

Hi Matt...I guess i was just wondering on the thickness of the coil wire. The coil i took out was 3/4" thick and the ECE 4" drop spring is 1/16" less. There is a 2 1/2 difference between the 2 coils so i imagine the smaller ECE coil wire will compress more with weight giving it the 4" drop. After speaking with Mark at ECE i should see a 3 1/2" drop from were my height was with the stock coil.This would be due from the stock spring is 12 1/2" and mine is 12 1/4".....But every coil is different. So i'll throw it together and see how she sits
__________________
1969 Pro Tour Camaro
2002 SS LE Rag Top #937
dondb is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:45 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com