ACDelco 540 438 Original Equipment Monotube Review

As a result of using this product, I found that my automotive performance has significantly improved. The monotube design provides a smooth ride, even on bumpy roads. The quality suspension has also improved my handling and stability, making me feel safer behind the wheel. The only con is the slightly higher cost compared to other aftermarket options, but the reliability and durability make it worth the investment.

These are Z-71 shocks. I installed them on my 2009 Suburban LT1 because I like a more controlled ride. Factory ACDelco > Monroes or Bilstein in my opinion.

I had to remove the air spring on my '08 Avalanche because I was tired of changing pumps, hoses etc. My truck is a little bigger and now handles bumps like a champ.