this happened to me before but at a much lower speed 45mph to 50mph.
it was an axle that was about to break.

check the axles for excessive freeplay. you should also consider actually require you to do an alignment since you played with the tierods. rebalance front tires.


i personally think its a bad axle since with your description, the problem is torque sensitive so yeah. i put my money in the axles