Did you take any mounts loose to do the repairs? I doubt it's a axle shaft causing the pull. "Torque steer" is usually caused by worn or mispositioned mounts/worn suspension components. Some vehicles (years ago) had horrible torque steer right out of the box, having on long and one short axle shaft.
You stated that it feels like the left side is doing all the work. Are you sure both axles were correct and are fully seated in the transmission?