Yep I got that but my question is how is the best way to un screw the standard oil pressure sender?

 

Probably PB blaster or some other penetrating oil. I've read it can be a real pain to get it off. I opted to go with a samich adapter. From what I remember its best to do it by hand. Don't try to put a air tool on it or it could end up stripping the hex thing.

 

How hard is it to install a sandwich adapter?

 

It's pretty easy. Basically a plate is held on by a double threaded bolt. The oil filter threads onto the bolt too. I've had no problems with oil leaking. I say do what you're comfortable with.

 

where did you buy yours from?

 

I got mine from prosport gauges. I think for the most part the samich adapters are universal for cars? I think trucks might be bigger?

 

a wrench

 

I think it uses a hex or allen wrench?