I have a 2004 Toyota Land cruiser. The truck runs excellent and i have had no issues what so ever and have kept up with routine maintenance. A key issue i have noticed that when i am moving at a steady speed and if i have to give gas i hear a "thug" sound as the transmission engages. Same is the situation when i am stand still and want to move quickly i hear the "thug" sound. Transmission shifts perfectly -- no slippage what so ever except a thug. Any suggestion / recommendation would be highly appreciated.