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73-87chevytrucks.com
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73-87 Chevy _ GMC Trucks
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Brakes, Frame, Steering & Suspension
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V20 rear leaf springs
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Topic: V20 rear leaf springs (Read 1269 times)
Swampyankee74
Frequent Member
Posts: 321
Keep em alive
V20 rear leaf springs
«
on:
August 04, 2022, 02:04:43 PM »
I recently purchased a 1987 V20. While working on it I noticed the rear leaf springs had 4+1 leafs. The vin number says its a v20, the breaks and drive train all match a v20. Did someone swap the rear leaf springs out with a half ton pickup?
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Shifty
Junior Member
Posts: 961
I bleed Bowtie red...
Re: V20 rear leaf springs
«
Reply #1 on:
August 04, 2022, 03:19:50 PM »
I've got a good 1.38 million things going on, but I'll try to peek at mine tonight...
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87 V20 Standard Cab Longbed (current)
87 R30 3+3 Longbed (days of yore)
98 C2500 ext cab longbed
Swampyankee74
Frequent Member
Posts: 321
Keep em alive
Re: V20 rear leaf springs
«
Reply #2 on:
August 04, 2022, 03:52:36 PM »
Sounds good, thank you
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VileZambonie
Global Moderator
Senior Member
Posts: 19034
Re: V20 rear leaf springs
«
Reply #3 on:
August 04, 2022, 07:20:06 PM »
My 1980 C10 had twice the amount of leaves of my K20. You have to figure out what you want in terms of height and spring rate.
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, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
Swampyankee74
Frequent Member
Posts: 321
Keep em alive
Re: V20 rear leaf springs
«
Reply #4 on:
August 04, 2022, 07:59:13 PM »
The truck is stock height. No lift. And I intend to keep it stock. I just didn't know if somebody had taken the stock Springs out of it and put these in for a smoother ride.. Because like you said my 1974 C15 has doubled the amount of leaves as the v20. Made me think somebody might have altered it at 1 point in time. But you're saying you think that is the stock amount of leafs?
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Shifty
Junior Member
Posts: 961
I bleed Bowtie red...
Re: V20 rear leaf springs
«
Reply #5 on:
August 05, 2022, 09:12:40 AM »
My 87 V20 has 7 + 1! No wonder it rides like a giggered tank....
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87 V20 Standard Cab Longbed (current)
87 R30 3+3 Longbed (days of yore)
98 C2500 ext cab longbed
Swampyankee74
Frequent Member
Posts: 321
Keep em alive
Re: V20 rear leaf springs
«
Reply #6 on:
August 05, 2022, 02:36:38 PM »
That sounds to me like the right number of leafs. Which makes me beleave someone at some point swapped these springs out with a 1/2 ton. The rest of the truck including Vin matches what a v20 is supposed to be. Thank you for taking a peek at yours for me shifty!
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Swampyankee74
Frequent Member
Posts: 321
Keep em alive
Re: V20 rear leaf springs
«
Reply #7 on:
August 05, 2022, 02:45:55 PM »
Just took a peek at my 74 c15 it is a short bed stepside and it has 7+1. It is bone stock unmolested. But was ordered with heavy duty springs and clutch. Doesn't make sense to me the 3/4 ton has less leafs.
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Swampyankee74
Frequent Member
Posts: 321
Keep em alive
Re: V20 rear leaf springs
«
Reply #8 on:
August 05, 2022, 06:06:01 PM »
I guess if your v20 has 7 leafs, and my half ton has more springs someone swapped the leafsprings out with a lighter truck. I got porked. Lesson learned
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csdineley
Newbie
Posts: 87
Re: V20 rear leaf springs
«
Reply #9 on:
August 05, 2022, 06:51:52 PM »
My 87 has 56" 7+1 on the Back and 4+1 on the front.
«
Last Edit: August 05, 2022, 07:00:01 PM by csdineley
»
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1987 V20 Custom Deluxe, Vortec Headed 350, SM465,Np205 14Bff 4.10
VileZambonie
Global Moderator
Senior Member
Posts: 19034
Re: V20 rear leaf springs
«
Reply #10 on:
August 05, 2022, 07:10:33 PM »
Unless your SPID label is in place and shows the suspension options you are solely basing what it came equipped with on assumptions.
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, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
Swampyankee74
Frequent Member
Posts: 321
Keep em alive
Re: V20 rear leaf springs
«
Reply #11 on:
August 06, 2022, 06:31:58 AM »
That is true. I'll take a peek at it
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Swampyankee74
Frequent Member
Posts: 321
Keep em alive
Re: V20 rear leaf springs
«
Reply #12 on:
August 06, 2022, 07:27:07 AM »
Just decoded the rpo codes on the spid. The truck is a 6600 pund gvrw. A lot lower then I would have expected.
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73-87 Chevy _ GMC Trucks
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V20 rear leaf springs