QUOTE(maf914 @ Jan 2 2011, 01:34 PM)

That Triad looks good. Congratulations! I didn't know Dave made them for 75-76 model heat exchangers, but it's good that he does.
I must say that I am surprised your original system is still intact, especially in a snow climate. I'm in the south east US and had replaced the secondary muffler twice on my 76 model before doing a 74 exhaust backdate using SS heat exchangers and a Bursch quiet exhaust in the mid 90's. I've noticed that the 75-76 muflers have been NLA for quite a few years.
Ive only had mine for a bit...Imported from OR.Also,it doesnt see the rain,let alone the snow!It sits under its cover in my shop.

The stock setup has a couple of cracks tho..