2019+ Silverado caliper substitute??

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Rayyy

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Does anyone know the difference between the 2019+ calipers (part# 13536580 and 13536579) commonly talked about on this forum, and the ones recommended by Summit Racing as "similar substitute parts??"

I'm in the process of sourcing all of the parts for the 2019+ Silverado big brake upgrade, and I noticed that although they out out of stock on the Summit Racing site, there is a disclaimer box with a link recommending substitute parts for these calipers??


Or...


What is the difference??


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Rayyy

Rayyy

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And according to GMPartsAmerica... 13545382 replaces 13536579, and 13536583 replaces 13536580...

So, are these the next iteration of these big calipers? Are they improved in any way? Is that why the original ones were discontinued so quickly?

The really good news is that these are plentiful and cheap!


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Rayyy

Rayyy

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Even more confusing, on some other forums there are people doing this swap using the same rotors, but caliper parts numbers 13530411 and 13530412, which apparently also came on 2019 and 2020 Silverado/Sierra ??

But I guess this one is an earlier version as well, since it is discontinued, and scarce online ?

 

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