ACDelco GM Original Equipment 213-1701 Vehicle Speed Sensor

Perfect fit for 2004 trailblazer LS 4.2 I6. You will loose no fluid when changing this out. The old one is in there pretty good, so after you take out the bolt, just pull strait out. I did use a screw driver to lightly pry under the metal bracket and it popped out. I put a little tranny fluid on the new VSS seal. I hear that you can use motor oil too. Don’t do a lot, just enough to give it a little lube to slip into the hole easier without messing anything up.