On Sun, 26 Aug 2012 03:17:40 -0500, fred.flintstone wrote:

This may be too small of a pipe for common muffler clamps. If plumbing
pipe fits inside, either get it welded, or drill a hole thru both pipes
and put a bolt thru it.

I went to Midas today. They have pipe that is EXACTLY the same size, but,
it MUST be welded (as you noted).

Just dropping the EMT pipe inside seems easier than welding. And stronger
if I bolt it in (as you also noted).

Today I picked up a 10-foot length of 1" EMT which fits loosely inside
the DirectTV J arm bracket. They don't sell smaller lengths!