8 3/4 Rearend Question

Thanks! I'll keep my eyes open. I did see a a-body 8 3/4 489 case with 3.23 and a sure grip locally for $450. Supposedly has a bad ring and pinion. I may be moving into a new house (waiting on appraisal) shortly so I can't swing it, otherwise I would get it, and have a sure grip for the street with 3.55's, and a spool for the strip with 4.11's.