Stock height of a 1981 k20

[jwcummings]

Bought anew 81 k20 have 35s on my truck, want to replace leaf spring but want to keep same stance. Just want to know if the spring on the truck are factory or if they are aftermarket

 

[yevgenievich]

Here is example chart(for a suburban, but should be similar)

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[jwcummings]

Thank you