They look good. IMHO unless they give you major issues, keep them.
Do you have any binding or vibrations due to the lift and axle angle? I've been thinking about doing this setup but I'm concerned about drivetrain/drive axle issues.Took me only 6 months to procure rear lift blocks. It's surprisingly difficult to get such a simple thing (or simple information) from companies like PRG or Calmini so I went to ebay and got HeavyMetal Suspensions' 2" 2-degree steel block lift kit with 9/16" u-bolts instead. This means that I had to enlarge the holes in the mounting plates. Obligatory pictures:
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