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#1 |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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lowering spring vs factory spring
So I installed a 5" lowering kit on my truck and only got approx 3.5" of drop. I used DJM 3" control arm and the 2" lowering springs. My question is should the springs be 2" shorter than the factory springs?
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#3 |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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Re: lowering spring vs factory spring
I took measurements prior to installing the kit and the height was the same as the rear. Approx. 18.5" from the center of the wheel to the fender. After I installed the 3" control arm and 2" lowering spring I only got approx 3.5" of drop which makes me think I didn't get 2" lowering springs.
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#4 |
Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: lowering spring vs factory spring
This is kinda common a lot of these trucks have saggy springs so lowering it don't go as low as you think it should.
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#5 |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,963
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Re: lowering spring vs factory spring
Drop amounts are typically calculated/measured vs a stock height vehicle. Not all stock height vehicles are the same since fresh vs well used springs can yield different heights.
Sounds like your original springs were slightly sagging so you already had some drop.
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#6 |
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Join Date: Dec 2011
Location: Arlington WA
Posts: 1,728
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Re: lowering spring vs factory spring
hmmmm. drop coils and drop LCA's. that puts your lower ball joint really high.
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#7 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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Re: lowering spring vs factory spring
Quote:
Posted via Mobile Device
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http://67-72chevytrucks.com/vboard/s...d.php?t=580955 http://youtu.be/JYoQJYTXKqI 1984 Chevrolet Scottsdale C10 "Project Platinum C10" 1971 Chevrolet Chevelle "Project Car" |
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#8 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
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Re: lowering spring vs factory spring
Quote:
Posted via Mobile Device
__________________
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#9 | |
67-72 parts collector,…
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Location: Mid-MO
Posts: 22,696
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Re: lowering spring vs factory spring
Quote:
"Drop Pocket" style a-arms were an alternative to using drop spindles but create "scrubline" issues in the process. (they hang below the rim) With 15" or 16" wheels,... in the event of a flat tire,... you could be riding on the a-arm instead of having braking control of the truck, with the wheel. EDIT: This is the extreme of what I'm talking about,... because this truck has drop spindles and drop pockt style a-arms. Which is a big no-no.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 07-05-2013 at 12:00 PM. |
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#10 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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Re: lowering spring vs factory spring
Quote:
Posted via Mobile Device
__________________
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#11 |
67-72 parts collector,…
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Re: lowering spring vs factory spring
20" wheels will lessen the effect,... but you never know when the 15's will have to go back on.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#12 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
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Re: lowering spring vs factory spring
Quote:
Posted via Mobile Device
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=580955 http://youtu.be/JYoQJYTXKqI 1984 Chevrolet Scottsdale C10 "Project Platinum C10" 1971 Chevrolet Chevelle "Project Car" |
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#13 | |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
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Re: lowering spring vs factory spring
Quote:
But it's OLD technology for the 63-87 C10 trucks, in my opinion. Spindles and springs are a better choice. Again,... my opinion.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#14 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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Re: lowering spring vs factory spring
Quote:
Posted via Mobile Device
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=580955 http://youtu.be/JYoQJYTXKqI 1984 Chevrolet Scottsdale C10 "Project Platinum C10" 1971 Chevrolet Chevelle "Project Car" |
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#15 | |
67-72 parts collector,…
![]() Join Date: Nov 2002
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Re: lowering spring vs factory spring
Quote:
But there is tons of info in the internet about crappy balljoints used by DJM. (search google) The good thing is they can be replaced with quality MOOG balljoints. But that's not really why you bought new a-arms,...
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#16 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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Re: lowering spring vs factory spring
Quote:
Posted via Mobile Device
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=580955 http://youtu.be/JYoQJYTXKqI 1984 Chevrolet Scottsdale C10 "Project Platinum C10" 1971 Chevrolet Chevelle "Project Car" |
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#17 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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Re: lowering spring vs factory spring
Quote:
Posted via Mobile Device P.S. I rotated the spring so the end of the lowering spring sits in the control arm keeper. Posted via Mobile Device Posted via Mobile Device
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#18 |
Registered User
![]() Join Date: Apr 2009
Location: New Freedom Pa.
Posts: 1,335
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Re: lowering spring vs factory spring
Truck looks great!
You realize uninstalled spring height means nothing , its all about " Load Rate " , which you can't tell buy looking at the springs. An increase in coil diameter can be a huge difference on installation. Just for example my C20 front springs looked identical side by side (old vs new) but after installation it sat 1.5 inch higher. Which is what I wanted. IMO drive it for awhile let it settle in, then re measure. Desert |
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#19 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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Re: lowering spring vs factory spring
Quote:
Posted via Mobile Device
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=580955 http://youtu.be/JYoQJYTXKqI 1984 Chevrolet Scottsdale C10 "Project Platinum C10" 1971 Chevrolet Chevelle "Project Car" |
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#20 |
Registered User
Join Date: Mar 2013
Location: Fayetteville Arkansas
Posts: 830
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Re: lowering spring vs factory spring
You might try cutting one spring from the stock and see what that yields, I got 1 1/2 out of that, but not sure what the difference in ride would be. You would also probably have to get a realignment.
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#21 | |
Registered User
Join Date: Mar 2013
Location: Silsbee Tx.
Posts: 880
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Re: lowering spring vs factory spring
Quote:
![]() Posted via Mobile Device
__________________
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