'92 a518 vss to '97 OBD2, compatible?

What vehicle is this going into? A518 trans won't fit under an A-body without cutting the torsion bar crossmember and floor, if I recall correctly. Also, that older A518 is hydraulically controlled. I am pretty sure that speed sensor had no impact on trans operation for the A518 you still have. If you want a cable speedo hooked to that old A518, just install the regular old style speedometer drive housing and gear arrangement.