There's actually some noise about a revolver built for a full size by the end of this year. The rest have been jeep sets with some beefing, or maybe even without some beefing.
They will give you more flex, but you should make sure more flex is really what you want. There are places it works, and others where extra suspension will roll you over.
One thing that is a concern with any kind of goofy shackle or leaf is axle wrap. IT WILL BE A PROBLEM ON A BLAZER. You may be able to drive around it, but you will lose some wrap control and should counter that with a traction bar of some sort.
Making the world better, one truck at a time.
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