T-bar height directly impacts camber, caster, and toe. If you did not put them back in exactly the same spot, then these three parameters have changed, which will alter the way the car feels and tracks down the road.
You can try adjusting the bars up or down to where you think they should be until the tracking improves to what it was. This will get you close to what it was before. Best solution would be to get it into an alignment shop. So, if you going to do that, set the ride height where you want it to be, then tell the shop to leave it there when they perform their adjustments. Do you have power steering and/or radials or are you manual steer with bias plys? The combination impacts the alignment specs you want to achieve.
