Stop in for a cup of coffee

toolmanmike said
Those ratios are available for the 741 case. Mopar 8 3/4" (8.75) Ring and Pinion for 741, 742, or 489 case

I did not know this. Thanks! I only searched summit and jegs (a good while back) and only found 3.23, I believe, which is what I have. Hm. That changes the equation slightly.