Coil Spring Swaps
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Loosen front lug nuts
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Jack up the front of the car
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Put jack stands under the frame
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Remove front tires
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Disconnect sway bar end links
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Disconnect brake lines (Optional. I disconnect them, preferrably
from the hard line attached to the frame)
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Remove shocks
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Run a chain up through the lower control arm and through the spring
and bolt it together with minimal slack
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Place a floor jack under the control arm (leave about a 1/8" gap between
the jack and the control arm)
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Remove the cotter pin from the top ball joint castle nut
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Loosen the castle nut a couple turns but leave sufficient thread engagement
to keep the nut from flying off when you separate the top ball joint
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With a heavy hammer, whack the spindle where the upper ball joint goes
through it (this is right above the castle nut)
- The blows from the hammer will cause the spindle to slightly flex and spring pressure will separate the ball joint. This keeps you from ruining the grease cups on the ball joint, which is likely to happen with a pickle fork
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Lower the jack to remove tension from the spring
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You may have to pry the spring out with a stiff rod (be sure the chain
is still installed securely)
- With stock height springs, some prying will probably be necessary but it shouldn't be too hard to get it out
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Reinstall the safety chain as soon as you able to do so
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If you've cut your front springs, installation will be easy, but if
you are putting stock or taller springs in you will probably need to compress
them somehow
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I made my own spring compressor from 1/2" threaded rod, some nuts and
washers, and a harmonic balancer puller (see pictures below, click on any
of them for a larger version of the picture)
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The threaded rod goes up through the top shock mount hole and the balancer
puller goes in between the coils toward the bottom of the spring.
I used some bolts in the slots of the puller to keep it centered in the
spring
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Make sure the top of the spring sits in the upper spring cup correctly
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Take a look at the upper spring cup to see how it is configured before
putting the spring up in it
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Once the spring is seated in the upper and lower spring cups, you can
raise the lower control arm with the floor jack
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Make sure the ball joint stud enters the hole in the spindle and put
the nut on
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Tighten the nut and replace the cotter pin
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Lower the jack
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Remove the chain and spring compressor if you used one
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Re-install the shocks, sway bar end links, reconnect the brake lines
and bleed the brakes
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Once you get the front tires on, you are ready to roll!
WARNING: Compressed springs store a great amount of energy. Quick release of this energy can cause damage or bodily injury. Always use a safety chain and work safely with safe equipment and tools. Work at your own risk, as the author is not responsible for any injuries or damage incurred from the use of this guide.
If you have any questions or comments please click the "Contact Craig" link and let him know.Copyright © 2009 Bruce Johnson and Craig Watson