MAKE: Toyota MODEL: Tacoma Base (4WD) 4 Door YEAR: 2013 MILES: 63K ENGINE: 4.0L DESCRIBE ISSUE.... My truck runs and drives great. However, on just moderate bumps, the rear end feels like it's bottoming out. I carry a small tool box, a tow chain, and a few accessories in the back; maybe 100 pounds. I also have an Undercover ABS plastic hard shell on the bed. I pulled one rear shock off on Saturday. I don't see any signs of leakage around the shaft. I can push it all the way in with moderate effort, but I've seen some that are much more difficult to push in. The shocks are yellow Toyota Bilstein, part number 48530-AD051. I'm confused as to whether I need to replace them based on the fact that they do have resistance when trying to push them in. What are your thoughts? Thanks as always!