The tensioner is almost straight below the alt..... When I changed the alt, I removed the small shroud on the fan shround infront of the alt, removed the wires, and removed the 3 bolts that hold it to the bracket. I heald tension on the alt, and eased off the pressure, and slipped the alt out. I put the new one under the belt and eased it back on. Put the 3 bolts back in and connected the wires. It is about a 15-20 minute job doing it that way. If the belt comes off the other pulleys it can be 30 - 60 minuted to refish the belt. If is difficult to ge to anyting on the front of the engine because of the fan shroud. To do any service on the front of the engine you have to cut the fan shroud in to (there are pre marked places) to get it out. I have a water pump that needs changed in the near future and we are budgeting an entire weekend just to make sure we have enough time to take everything off and put it back on.....