Hi
This is the type of kit I was talking about, this one is on NAPA
http://napaprolink.com/detail.aspx?R...975_0330718988 it cost about $72.00 not the cheap version I as mentioning though which I think was more like $20 bucks
The three bushings included lets you use the normal sender unit in a variety of applications and yes the bushings with the gauge I have fit the standard CMP Chevy gauge sender. See the photo below with old CMP sender bulb installed in thermostat housing tap.
I'll keep looking for another source.
Cheers Phil