Factory rear block size?

[Jebburke]

What is the factory rear block size for a 2018 Chevrolet RWD

I want to take it out so my truck leans a little and the front is a little higher, but i do not want the squat look

 

 

[CamGTP]

I think the last time I measured the factory rear lift block they were around 1.3in high. I removed them on several of my half ton trucks to drop the rear down so it's more level.

[Big Whiskey]

Since you posted in the HD section, I'm assuming you have an HD truck. If that's the case, your truck doesn't have a factory rear block. The only way to lower the rear is with lowering shackles.