adam, question about your exhaust

I saw on BBD that you have run a 3" exhaust.....is it custom or tti?
I'm wonderijng about clearance in the rear. I have the offset hangers/shackles on my 67 and was wondering about fitment. didn't see anything on tti's site about it.

also, i understand that the 67s used a lateral tank strap and 68-up used longitudinal??

guess that'll make a difference too....