I would like to dispel the myth that it is almost "impossible to repair the fuel sender unit" if you take the unit out and take it apart which consists of one nut, then you can see just how simple the workings are. My fuel sender stopped working and it was a spring that had snapped in the sender unit it probably took about 1/2 an hour to remove it from the car solder it back together and replace it in the car. That was 4 months ago and it has been working fine since. Remember if it doesn't work what have you got to loose by taking it out and trying to fix it yourself. I am sure that the new Tankzilla units are much more reliable but I.M.H.O it is always best to try and make use of what you already have rather than just replacing it. If you were to rate on a difficulty scale of 1-10 with 10 being the most complicated I would rate putting your key in the ignition as 8 and fixing the sender unit as 10 Regards James RG Sunny England