I just bought a 4x4 TRD 09... I am a total newbie when it comes to 4x4. I just hit some dirt, and the Diff Lock only engages in 4L, and there are stickers all over the door that basically say, keep it under 5mph (ha!). It is because of how much it tears up the ground?
Can someone with some 4L & Diff lock experience tell me more?