In reply #1 from Jim, he states "A non-power steering V-8 car uses the same hardware as the RH side on the LH side."
So in a non-power steering setup (V8 car) you'd have 'TR' marked bolts on each side. With power steering, you'll have both: 'TR' marked on the right, 'A' marked on the left, which matches the examples in all the posted photos.