Harrell,

I haven't done this tube routine in many moons so this might not be 100% accurate.

Your tube kit should have come with the tube and soldered nut at one end and a male adapter and compression fitting that make up the seal on the lower, or oil distributor end. The male adapter screws into the block and the compression nut (sleeve) goes around the copper tube and into the male adapter.

As you tighten it, it compresses and seals the water jacket/tube area. I have included a link to the fittings that I think make up the lower portion of the tube..the ones near the oil distributor valve.

The proper kit should have had the proper fittings. Jim Carter Trucks shows the kit and fittings in their catalog.

Once the tube has been crushed by the compression nut, the copper tube is deformed. I'm not sure you get a second chance on this! This is how I remember it.

http://www.fastfittings.com/page/11442216

Stuart