Does anyone recall the GM part number for the power steering pump to replace the one in the Series 3 (1985)?

 

Recall...well I don't exactly have it memorised but here it is: the pump for cars up to VIN 312652 is C.45540 (non metric) and the pump for cars after 312653 (metric) is EAC3167. The latter equates to DELCO 36-215139.
I hope this helps.