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10-01-2025, 11:03 AM
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#1 |
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Registered User
Join Date: May 2011
Location: Boise, ID
Posts: 95
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leaf spring vs trailing arm
I have a 68 GMC with leaf springs that should be high 11s low 12s, it needs a rear suspension makeover. it would either be new rear leafs, spring under axle, with caltracs or convert to trailing arm and probable coilovers. this will be street/strip. Opinions?
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10-08-2025, 07:02 AM
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#2 |
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Registered User
Join Date: Sep 2000
Location: Gower, MO.
Posts: 269
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Re: leaf spring vs trailing arm
Are you going to use this as a race only, or as a street truck/race setup?
My 70 is a trailing arm truck. So with all the modified rear trailing arm suspension I have to use a removable airbag plate system I designed for hauling all my crap from track to track on Drag and Drive events. That being said, good bushings, good appropriately sized leaf spring packs, and Calvert or Assassin traction bars with.......... GOOD shocks front and rear get my vote.
__________________
If patience is truely a virtue, Then I am so screwed 1970 Chevy SWB Gasser 364"LS and all the goodies 2001 Vette Road/Street 1990 IROCZ Vert |
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10-08-2025, 08:59 AM
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#3 |
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Senior Member
  
Join Date: Oct 2014
Location: Eagle, ID
Posts: 3,406
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Re: leaf spring vs trailing arm
While not directly related to the discussion, are you bringing it out to the Halloween Classic this week?
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10-09-2025, 12:15 PM
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#4 | |
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Registered User
Join Date: May 2011
Location: Boise, ID
Posts: 95
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Re: leaf spring vs trailing arm
Quote:
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02-24-2026, 07:15 PM
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#5 |
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Registered User
Join Date: Apr 2018
Location: Princeton, MN
Posts: 10
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Re: leaf spring vs trailing arm
Hey - I'd be curious to learn more about that rear suspension set-up... I do a lot of drag and drives with my 72 trailing arm truck and am always looking for better options!
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