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 03-20-2012, 08:54 PM   #1
rubberbandit
Active Member
 
rubberbandit's Avatar
 
Join Date: Aug 2011
Location: Las Vegas, NV
Posts: 147
Modifications on a 4.5/6 drop

I have a bare frame and am ready to place suspension on my first frame-off restoration. I like the 4.5/6 drop. I have new CPP 2.5" drop spindles and 2" lowered springs ready to install and will be putting 6" springs in the back.

What modifications should i make at this point? Should I C-notch the frame? Should I replace the trailing arm crossmember and/or the trailing arms? I am using the stock control arms and haven't altered them at all. Is this okay?

I have done searches on these and would like to know what you guys would do or have done and why? Is there something you wish you would have done? I just want to do it one time and do it right but don't want to spend a ton on unneccessary modifications.

Thanks for your help
__________________
-Chad

'72, C10, SWB, fleet, 4L80E, 406sbc, EFI, TruTrac Blackfoot

'69 C20 Suburban, PB Dropmember, 3rd row, LS3 6.2L, 4l80e, rear A/C, Dakota Digital HDX Babe: The Blue Ox
rubberbandit is offline   Reply With Quote
Old 03-20-2012, 11:07 PM   #2
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,064
Re: Modifications on a 4.5/6 drop

If you ever plan on going lower than the 4/6 (or carrying a decent load).....

It's really easy to do a c-notch now vs later.
It's also alot easier to do an aftermarket truck arm crossmember which allows for running the exhaust up higher/farther from the ground & allows more clearance under the frame.
Stock truck arms work fine.... Porterbuilt truck arms work better.

Also consider shock relocation brackets to optimize the shock travel/geometry & an adjustable 'long' Panhard bar vs a stock length unit.
__________________
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

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 08:34 PM.


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