so i was looking through the moog catalog and found they list 2 springs for xj's first one is
cc780.inside dia 4.040,bar dia 0.531,install height 15.00,load rate(lbs)388,spring rate(lbs/in.)125.5,fee height 18.22
the other is
cc782.inside dia 4.040,bar dia 0.578,install height 15.00,load...