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Quick question on installation of new coils

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Old Jan 11, 2011 | 09:12 PM
  #1  
Mr Froman's Avatar
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From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Quick question on installation of new coils

Was sitting in my suspension class today and got to thinking about when I changed my coils with a couple other people a while back. Put in eibachs, but when we took the old ones out we saw that there were black rubber pieces at the top of each coil. The guy who's shop it was insisted that I did not need them for the new coils. (the eibachs did have a different, flat top.)

Is this okay?
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Old Jan 12, 2011 | 12:15 AM
  #2  
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From: CPT (Southern Cali)
Car: 09 GSXR/88 iroc/91 RS B4C
Engine: 600cc/l5.7/5.7
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Axle/Gears: 45tooth rear?/3.23/3.42
Re: Quick question on installation of new coils

you need them or else you'l get a larger drop then anticipated,
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Old Jan 12, 2011 | 12:38 AM
  #3  
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Quick question on installation of new coils

He is correct about the extra drop, but we are talking about 1/4"-1/2" or so, extra drop. And they are not REQUIRED to be put on. When I put my Ground Control Weight Jacks on, I didn't put any of the rubber insulators back in & have no excessive banging/clunking or anything extra.

Put them in or not. Purely optional.

Last edited by Stephen; Jan 12, 2011 at 12:45 AM.
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Old Jan 12, 2011 | 06:52 AM
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Re: Quick question on installation of new coils

They are insulators so you may experience more road noise without them.

JamesC
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