[CHANMADD]

Those upper arms ARE different. The one with more angle on it goes on towards the front of the car.IE: it pushes the ball joint towards the rear of the car --- CASTOR--,is then adjusted by putting shims between the ball joint and the arms either more in the front or back to adjust the castor.Be very sure that there is no tension on those arms when you have the castor right,in other words there should be shims on both sides of the ball joint.The jag top bushing have Torrington bearings in them (Why I would never change them for a solid bush).The little mounting holes should face down,there was a little screwed in rubber bush for the bump stop in the jag. I put a piece of flat steel bar across those and mounted the jag stop that came out of that hole to the frame and that is now my bump stop.It has worked well.As said do not tighten the bottom until its on the ground with all the weight of the car on the springs.That jag front end is hard to beat.Tightening the lower at the end ensures that the rubber is not unduly stressed and can also supply some damping.