Please call us to confirm availability.Manufacturer part #:29162130BK Technical Description Features American Metric Weight 29.56 oz 839 gm Max safe Working Load of car 3300 lb 1500 kg Max span between Fixings 31 in 300 mm Moment of inertia 22188 mm4 22188 mm4 Fixings 5/16" Hex Hd M8 H 0.71 in 18 mm W 1.18 in 30 mm length 9'10" ft 3 m