I bought this Walker 1 3/4 Exhaust clamp 35406
http://www.amazon.com/gp/product/B0019ICG7M
drilled a hole through the center and mounted this ram mount 1 inch ball.
http://www.amazon.com/gp/product/B00AHCUNG2
clamp on this double short socket arm
www.amazon.com/gp/product/B005KWPJ04
and hold...