Knuckle joints

Hi all, just about to change the steering knuckle/uj's on my old 90, any tips advice please, not tackled them before. Thanks

you could set steering at same time , by first centralising steering box the steering wheel by undoing ujs or steering wheel then set drag link so the steering wheel is aligned when road wheels are running straight , ujs are easier to remove if you wedge a chisel or similar in slot to open it up ,some splines uj goes over only have a flat to take pinch bolt ,so slot has to be central to this flat when refitting ,one spline or more will have a groove all around shaft to enable you to fit uj in any position to set steering wheel to central positioned box