About year ago, I managed to find a complete set of somewhat rare Nissan height-adjustable competition suspension. Back then, I discovered that one of the rear springs was shorter than the other one, which was a bit strange. The catalogue however clearly mentions 205,5mm’s free length, for both sides, on the rear springs 55020-E4621: The difference might have occurred due to wear under racing use, or long-term storage in compressed state or whatever, but yeah it was a bit strange. My thinking was that I probably would not sense a big difference once they are installed in a compressed state, so it didn’t really bother me. But then, I came…