I just finished doing a complete fluid service all around yesterday and It doesn’t have shock relocation brackets and the keys look stock but have flash rust on them so they might be aftermarket lowering keys. As far as the rear springs go I don’t know. The truck just seems low. Too low for me . I want to do a lift on it like I did my Tahoe. Lift keys and z71 coils in the back. Just wanted some other people’s view on if it was lowered because I don’t know what the stock height usually is. Now that I think about it the bump stops are alittle smashed so it much be lowered.