It sits just above the oil filter with a single wire attached. Looks like this. I've forgotten what size wrench (spanner in English <img src="/forums/images/graemlins/ignore.gif" alt="" />). Anyhow, I got mine from Advance for $35. They had to order it <img src="/forums/images/graemlins/rolleyes.gif" alt="" />, but the sender was $60-65 at the stealer. I got a tube of thread sealer too, but I lost that and changed it without (where's that shady tree)!! I'll check tonight to see if it's leaking <img src="/forums/images/graemlins/rolleyes.gif" alt="" /> My oil pressure (with Mistu filter) now runs between 30 and 60 psi (idle - highway) hot. Of course it's still a crappy gauge and I wonder if you could get 'real' gauge for similar money.

Out of interest I used 10W40 high mileage oil. My lifters weren't so happy with that as they were with 10W30. They aren't noisey but I can hear them.