1. The problem statement, all variables and given/known data 2. Relevant equations T=(GJ/L)Φ G=modulus of rigidity J=polar moment of inertia L= length Φ=twist angle (rad) Direct shear = Force/Area Torsional Shear = Tr/J, where T is the torque and r is the radius from the center. 3. The attempt at a solution G=11e6 KSI J=(π/16)d^4, where d= diameter of the rod Φ=110 degrees = 1.9199 radians L = (GJΦ)/T Just to try to see if my logic is correct I put in the given value for d (=.49 in) but I'm not getting the correct answer. I feel like my FBD is incorrect.