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02-27-2018, 03:01 PM
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#1 |
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Registered User
 
Join Date: Jun 2006
Location: Maple Valley, WA
Posts: 1,913
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65 GMC Coil Springs
Pretty simple question, my truck had the 305E in it but I'm switching to an iron headed 408/4L80E and that's a BBC. Should I swap out the coil springs for proper BB ones or will I be okay with the heavier duty 305E springs?
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Custom Painter/Restoration Specialist 1965 GMC 3/4 Ton LB SOLD? 1964 Chevy El Camino in full restoration 1991 Chevy S10 288K+ miles 2nd Owner SOLD 2020 RAM 1500 Warlock |
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02-27-2018, 05:06 PM
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#2 |
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Registered User
Join Date: May 2009
Location: caliente ca.
Posts: 297
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Re: 65 GMC Coil Springs
I am no expert but I would say you will be fine. Theres little differance in wait between a bbc and a 305 v6. then you are using a trans that is lighter than a 4 speed( if that's what it had to begine with)
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02-28-2018, 12:58 AM
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#3 |
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60-66 Nut
  Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,246
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Re: 65 GMC Coil Springs
From past experience I would say that your truck will sit higher in the front with the BBC versus the V6 if retaining the original springs.
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