Are Blazer and K10 springs different?

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K10eddie

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Ed
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1979
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I'm looking to replace my leaf springs next weekend, and I'm double checking my parts. I bought these leaf springs from a swap meet a few years ago (great at putting things off) as I was told that they were for square bodies. I compared it to my stock leafs, and they looked the same (I never looked it up on my phone at the time).

Fast forward to now, and I decided to do the smart thing and look them up online. They say they're for suburban and blazers, but don't mention the pickups? They say they fit the 67-72 pickups, but not the 73-87 K10, according to SD and Michigan springs (I googled "22-403 leaf spring").

Did I goof and get the wrong springs, or will these work on my truck? They're rated for 2350 lbs each, which personally I think is plenty, I don't tow or haul with it. Are the blazer and suburban springs supposed to be shorter? I mocked a spring up against my current ones, and the eyelits appear to be able to be lined up.
 

K10eddie

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Craig 85

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My '79 K15 SWB had something similar to the 22-579. It looks pretty similar except for the way the 1st and second stages come in. The other difference is arc. 22-579 is 5.25" and the 22-403 is 6.75" Bushings and center pins lengths are the same.
 

K10eddie

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Sounds like it'll lift the truck a bit and drive different (besides being a new spring), something I didn't plan for. I think I'll just order the stock ones for a K10 and sell these. Thanks for the input.
 

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