Pro Part chassis headers on the 67 Barracuda, had to dent 1 tube a little as the cross link hit. Also had to cut back the outer steering column tube to the firewall for clearance. This is a major issue as the tube end has a retainer that keeps the 2 piece steering shaft connected into the steering box coupler. Surprise after 10 years of 130MPH 1/4 mile passes I lost steering pulling into my pit area.