Confused again: Or still

[acl]

Working on gauges and have a question. Checking ground at the gas sending unit, when i touch ground at the cab and the sending unit flange. I have continuity, when touching same cab ground and the gauge wire tab, I also get continuity, this is still mounted in the tank in the truck. I have a new one off the truck and again using a continuity tester i touch the flange and the sending wire tab I get a beep,. Is this right, These are both brand new sender, just seems funny to have continuity betwwen the two. Gary