Does RCV publish strengths of their shafts like this? Supposedly done by an independent lab. Looks like stock D60 35 spline shafts are stronger than the strongest land cruiser inner axle.
http://www.fourwheeler.com/how-to/s...toyota-truck-4runner-suspension/photo-16.html
http://www.fourwheeler.com/how-to/s...toyota-truck-4runner-suspension/photo-16.html
