While under the car I saw the right rear looked wet while the left was bone dry. Car has 124K. Looking on RockAuto I can get Sensen (not familiar with that) for $23 with 30 day warranty, Monroe for $32 with no warranty, KYB Excel G for $43 with lifetime warranty, AC Delco Professional for $50 with lifetime warranty and GM OEM for $75 with lifetime warranty. Assume the Sensen is made in China for that price. I asked KYB where they are made and was told Japan or USA. Couldn't get an answer from AC Delco or GM where they are made. Any reason not to choose KYB?