I have six 8.5” 10-bolt cores from 71-72 Skylark/GS. I have them all stripped,hot-tanked,and currently out getting blasted & powder-coated. Will build with any ratio - 3:08,3:23,3:42,3:55,3:73,3:90,4:10. Posi unit will be either Eaton clutch style posi,or Detroit Tru-Trac. Motive gears,Timken bearings,and the factory 28-spline axles. Price is $1400.00 plus freight. Upgrade to 30-spline Moser axles,everything else the same,price is $1800.00 plus freight. Will ship Fastenal store to store. These will be it for awhile,so if you are in the market for one,contact me.