8.75 center section 489 case date specific

I am looking for a correct date coded 489 center section for a 8.75 rear axle (either bare housing or complete). I am trying to find one with a date code between 0201-0901(January 20,1971-March 31,1971 for my build. Will buy or trade for a complete January 12, 1970 489 with a 3.55 cone style posi-traction in perfect working condition that I removed from an original low mileage AAR Cuda years ago. Below are pics of the AAR center section I am offering for trade, if interested. P.M me if you can help me out.

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