I recently had to change my steering gear box because of the shaft breaking. Replace it and the pitman arm and drove the truck with no problems for a week. Next thing i know the truck didn't have powersteering or solid break pedal. I change the power steering pump (oreilys) and bled as instructed by the info i found on this site. The brakes are working and my power steering is around 50%. When the turning the wheel the truck seems to have power steering but doesn't at different rotation of the steering wheel. Is it possible i still could be air locked or is it time to change the brake booster?