I have the same problem--1947 house construction, and the threads for the shower drain are at 2 inches; the standard 1 1/2" won't do it. The foot for the drain is embedded in a thick layer of cement that I do not want to remove.

I don't see how the mission clamp will work.

Laurien:

You don't have the same problem as Mrdanile as he was talking about a bathtub drain and you appear to be talking about a shower drain that is 2". All shower drains are 2"... ;)

Please take a minute and describe your problem in great detail... OK? We can discuss after that...

Mark