looking for 8 3/4 center

looking for 8 3/4 center section, prefer 489 case with 4.10 or 4.56 gear. with sure grip.[/QUOT
i have a 742 case with 4.56 gear ratio with the cone style posi a little wear on the cross pin they worked great they are to low for me 250.00 plus shipping
brent 435-830-2524