I have a 8.5" rear end from a 71 Skylark. I also have a clutch type GM posi. I would sell these together for $500. Or I could assemble it with a new gear set of your choice, new pinion and carrier bearings, new GM grease and additive, weld axle tubes, clean and paint housing for $1200 plus freight. Or deliver to GS Nationals. I also have an extra posi for $300. Any questions, send PM. John