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Old 03-25-2016, 11:27 PM   #1
Chevy3+3
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How do '86 k30 front springs differ from the '88 V30's?

I am thinking about putting an add a leaf into my current front spring packs on my '88 V30 and I see alot listed for up to '86 & '87 being one part number and the add a leaf kits for the '88-91 V series are a different part number. I just wondered if anyone might know what the difference would be. The reason I ask is because there are fewer manufacturers for my '88 and Summit sells a Skyjacker add a leaf kit but lists it for useon vehicles up to '86.

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Old 03-26-2016, 01:12 AM   #2
chengny
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Re: How do '86 k30 front springs differ from the '88 V30's?

The parts dwgs for the 85/86 K30 and the 87-91 V30 appear to be identical:

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Old 03-26-2016, 07:19 AM   #3
wildwilly4x4
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Re: How do '86 k30 front springs differ from the '88 V30's?

Im not 100% positive, but from what I remember the leaf spring mount bolts are a different size. For an add-a-leaf I don't think there would be any differences.
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Old 03-26-2016, 06:46 PM   #4
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Re: How do '86 k30 front springs differ from the '88 V30's?

I might just need to call the company and see why the difference in part #'s then. I installed a set of Skyjacker 2.5" softride front lift springs over a year ago. Skyjacker guaranteed them to lift a big block truck 2" and a small block 2.5". They did lift my BB exactly 2" on day 1 but a year later I think they have settled about a 1/2" more. I thought an add-a-leaf may work to help the spring pack that's already there.
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Old 03-27-2016, 06:28 PM   #5
redneckwheelman2
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Re: How do '86 k30 front springs differ from the '88 V30's?

from what i found on ORD is that 88 and up they used metric bolts so the bushings are different, the springs are the same.
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Old 03-27-2016, 08:54 PM   #6
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Re: How do '86 k30 front springs differ from the '88 V30's?

Have you thought about an ORD zero rate? It would keep from stiffening up your front springs, which you may or may not be going for.
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