[Alex van de Wetering]

Guys,

Thanks for the overwhelming responce! Bob and Paul are on the money; it's indeed a 3-way tee, three openings and the "dummy" branch used to secure the tee to the frame rail. This branch does indeed have a hole, but it't not threaded nor is it open at the end.

The line from the master cylinder enters at one end, the two others are used for the Front left and Front right brake. The rear uses a seperate line straight from the master Cylinder.

The more common tee that Phil and Scott posted is the one I am intending to use if I can't find the proper thing, the C8 also uses this tee on the rear axle. I intend to secure it to the frame with an angle iron bracket (and clip) and I think I should be able to position it close to the original position. I could of course also use the "branch" and the original hole, but that would mean one of the brake lines is coming down from the frame rail.....exposed, so not the way I want to go.
If I use this alternative I would still have to find out what threed the third hole is, as this is normally used to secure a brake hose which uses a different thread than the 7/16-24 of the brake line fittings.

Alex