smithy68 wrote:Would I only need it lowered 1 spline in the rear to match the front after the splines are fitted?
Height adjustment by counting splines is only a very rough estimate and should never be used. The correct method for setting the height is to use a protractor to measure the spring plate angles and hence get a much better idea of the amount of preload on each torsion bar. Even then you will never really know how the car will respond until it is back on the floor. Always remember as well that the suspension will settle quite a bit. I got the rear end of my bug lowered (with new bushings of course) and during the first week of driving it probably settled down by roughly a centimetre or so.