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10-28-2009, 08:35 AM
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#1 |
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Cultural Infidel
 
Join Date: Jan 2007
Location: Clearwater, FL
Posts: 668
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Drop spring questions
If I lower a truck using 2/4 drop springs, does this require any other adjustments or alterations? Will this adversly affect the suspension geometry?
-Mark
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posted via La-Z-Boy -Mark 1972 C-10 Fleetside 350/TH350 PS PB A/C Cab Sadly....Sold  1968 Short Fleet 350/TH400 PS PB Delivered by Fine69  Also sadly Sold!It may be that your whole purpose in life is simply to serve as a warning to others. A man is not complete until he is married -- then he is finished. |
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10-28-2009, 09:26 AM
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#2 |
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Registered User
Join Date: Oct 2008
Location: Taylor, TX
Posts: 95
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Re: Drop spring questions
You always want to get an alignment when altering your supension like that. Make sure you get an adjustable track/panhard bar to center your rear end.
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1970 Short/Fleet C-10 (Project) -Slammed and Tubbed 1955 Cameo -Straight six, Turbo Hydro option 1955 BelAir 2 door post -All original down to the oil bath air cleaner 1964 Corvette -All power A/C 327 4 spd. tanker 
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10-28-2009, 10:32 AM
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#3 |
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Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Drop spring questions
^ That's correct. Your alignment will be thrown off by the lowering of the springs. Camber is affected primarily.
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10-28-2009, 11:01 AM
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#4 |
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Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
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Re: Drop spring questions
Mark... the minimum you will need will be just that, the 2/4 drop. Check this out, these are ECE (Early Classic Enterprises) kits, and they are the best on the market IMO. Great parts and service. Either kit below will work for you, but you will need to have an alignment at your local shop.
The first kit is just their 2/4 drop; new springs and shocks: The next kit is their 2/4 premium drop kit and adds the shock relocators and the adjustable panhard bar. Check out their website for more infomation.... www.earlyclassic.com
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-Nate  1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) Last edited by 72BlckButy; 10-28-2009 at 11:02 AM. |
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10-28-2009, 11:33 AM
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#5 |
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Active Member
Join Date: May 2005
Location: San Jose, CA
Posts: 235
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Re: Drop spring questions
I did the premium 2/4 drop on my truck, and have never had it aligned. Drives straight and tires wear perfectly.
I also completely rebuilt the front end at the same time. Could be dumb luck, or could be paying attention to how the old parts were, measured and put all the shims back in the same places. Who knows!? I only have one minor complaint about the setup: The shocks are junk. Mine went bad in s few thousand miles. Could have been a bad batch, but even new, they werent great. Still looking for a better shock. J
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10-28-2009, 12:01 PM
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#6 |
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Watch out for your cornhole !
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Drop spring questions
Be warned, a 2/4 drop is fairly mild. Your stock suspension has likely sagged a good bit already. Installing the 2 and 4 springs probably won't net you that much drop from where it sits now. Lots of guys replace tired stock front springs with 2 inch drop ones and don't net any drop at all due to original saggy springs to start with.
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I'm on the Instagram- @Gearhead_Kevin |
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10-28-2009, 12:18 PM
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#7 |
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Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
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Re: Drop spring questions
Kevin brought up a great point... 40 years of wear and tear will make the springs sag. Where you think a drop will put you, will not always be the case.
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-Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) |
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10-28-2009, 05:18 PM
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#8 | |
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1970 C10
Join Date: Dec 2007
Location: Cleveland Ohio
Posts: 212
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Re: Drop spring questions
Quote:
 I would have gone 2"/4" but found these still new on ebay for real cheap! |
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10-28-2009, 08:44 PM
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#9 |
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Registered User
Join Date: Jan 2006
Location: Take Off
Posts: 1,908
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Re: Drop spring questions
Yeah, my truck has the original springs and it looks lower than stock to me.
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