ok well I found some sealant at a local spped shop.
http://www.jcwhitney.com/THERMOSTEEL...6924_10101.jcw
they use it for repairs on their drag cars at the track with great results.
they said its next best thing to welding.
I applied and seems to work.
sqeezed some inbetween flange and primary tube and it isnt noticable.
but curing takes 4 hrs .
looks like a good quik fix item for the track