I have even a better part to this story. Long story short, truck was Mom’s — bought in 2016 with 170k. Original 5.3 wasn’t maintained by the previous owners that great and ate a couple of lifters around 230k. I had a low mile, 40k LR4 4.8 out of a van. Threw that in, in Jan 2018. So that is what had been in it until Feb/Mar 2023. Talk about gutless. With 3.42 rear and gear, it never got out of its own way.
But it ran good.