I called Southwest Speed and their tubular a arms didn't offer any additional caster. Thats what the guy on the phone said. I'll have to pass on the Global West parts. I had to pull the wheel when I was trying to see why my turn signals were messed up. Told the alignment shop not to worry about getting the steering wheel, I could re position it later. Just spoke to Eckler's Late Great Chevy about not getting the correct caster and the lady on the other end talked to their technician. The technician said that the 2.5-3.5 degree of caster was just a suggestion. That is exactly what she said. So Eckler's made it sound like the caster doesn't matter, Borgeson says it does. I may just put the stock cylinder on, buy new hoses, control valve and stick to the stock steering.