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Whats the difference between Comps 978&987-16 dual spring?

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Old 10-23-2002, 10:44 PM
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Default Whats the difference between Comps 978&987-16 dual spring?

Anyone know?Its a couple bucks more so I figured there has to be a difference between the 2.Thanks alot.
Old 10-24-2002, 10:36 AM
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Default Re: Whats the difference between Comps 978&987-16 dual spring?

As far as specific differences, here they are:

978/987

1.460 / 1.430 O.D.
.697 / .700 I.D.
126@1.850 / 138@1.750 Seat Load
368@1.250 / 325@1.250 Open Load
1.195 / 1.150 Coil Bind
403 / 344 Rate (Lbs./In.)

Other than that, they use the same retainers and the same shims. Hope this helps! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

<small>[ October 24, 2002, 10:38 AM: Message edited by: parts@sdpc ]</small>




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