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 > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-15-2017, 11:08 PM   #1
Nuckingfuts
Registered User
 
Join Date: Apr 2017
Location: CA, USA
Posts: 117
How To Stiffen Front Suspension

After searching I see suggestions for sway bars but I'd like to stiffen my straight line suspension.

I've got a '73 with a 5/7 static drop, twin tube shocks all around, 28" OD tires and my front tires occasionally contact the wheel wells when I hit dips on the highway. I'd like to stiffen up the front end about 25% more and would like to know what you guys have done. Ideas?

Last edited by Nuckingfuts; 12-15-2017 at 11:44 PM.
Nuckingfuts is offline   Reply With Quote
Old 12-16-2017, 11:55 PM   #2
Ziegelsteinfaust
Registered User
 
Join Date: Dec 2012
Location: Temple City
Posts: 3,623
Re: How To Stiffen Front Suspension

This is a bit out of my specialty right now, but that is a rather tall tire for such a drop.

You could roll the fender well lips.

But I would get front rims with a bit more back spacing or slightly shorter+narrower tires.

Of course it is hard to see the problems. On the Internet
Ziegelsteinfaust is offline   Reply With Quote
Old 12-17-2017, 12:30 PM   #3
Nuckingfuts
Registered User
 
Join Date: Apr 2017
Location: CA, USA
Posts: 117
Re: How To Stiffen Front Suspension

Quote:
Originally Posted by Ziegelsteinfaust View Post
This is a bit out of my specialty right now, but that is a rather tall tire for such a drop.

You could roll the fender well lips.

But I would get front rims with a bit more back spacing or slightly shorter+narrower tires.

Of course it is hard to see the problems. On the Internet
The plan is to swap in some 15" ralleys with 255/60 coppers which will make it a 27" which will help a bit.

I'm assuming C20/C30 springs are heavier rate, has anyone tried using these to stiffen the front?
Nuckingfuts is offline   Reply With Quote
Old 12-17-2017, 04:16 PM   #4
HunterRotten
Registered User
 
HunterRotten's Avatar
 
Join Date: Oct 2016
Location: Kentucky
Posts: 385
Re: How To Stiffen Front Suspension

Sway bar and drop coils with a stiffer rate. CPP sells a little adapter on their site that raises the sway bar up for dropped C10's.
HunterRotten is offline   Reply With Quote
Old 12-17-2017, 04:42 PM   #5
69heavychevy
Registered User
 
69heavychevy's Avatar
 
Join Date: Jan 2007
Location: Garland,TX
Posts: 431
Re: How To Stiffen Front Suspension

My front end stiffened up a bit when I switched over to BBC springs. I did cut 1 coil off to get the desired drop on the front.
__________________
80 C10 SWB Step Side - 350 w/ vortec heads, TH350, 12-bolt 3.73
69heavychevy is offline   Reply With Quote
Old 12-17-2017, 05:32 PM   #6
LT7A
Registered User
 
Join Date: Oct 2015
Location: PNW
Posts: 3,615
Re: How To Stiffen Front Suspension

All the stuff mentioned above sounds like it'll help. I'd get or fab some extensions for your bump-stops. If you like how your suspension currently operates, then you're done. Even if you want to implement other items, the bump-stops should be compatible and are your last line of defense since they have the final word on sudden suspension impacts.
LT7A is offline   Reply With Quote
Old 12-17-2017, 08:22 PM   #7
Nuckingfuts
Registered User
 
Join Date: Apr 2017
Location: CA, USA
Posts: 117
Re: How To Stiffen Front Suspension

Quote:
Originally Posted by HunterRotten View Post
Sway bar and drop coils with a stiffer rate. CPP sells a little adapter on their site that raises the sway bar up for dropped C10's.
I'm currently using DJM 2" drop coils but I think they're the same rate as stock just shorter. Who carries a 2" drop stiffer rate spring?
Nuckingfuts is offline   Reply With Quote
Old 12-18-2017, 11:02 AM   #8
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,028
Re: How To Stiffen Front Suspension

Quote:
Originally Posted by Nuckingfuts View Post
I'm currently using DJM 2" drop coils but I think they're the same rate as stock just shorter. Who carries a 2" drop stiffer rate spring?
Try Hotchkis.
Nobody else that I'm aware of lists a spring rate for dropped coils. Hotchkis offers 2" & 4" dropped versions. The alternative is new coils that have a higher spring rate vs your current ones cut to your desired drop.
__________________
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.
SCOTI is offline   Reply With Quote
Reply

Bookmarks


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 11:10 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com