Axle conversion?

Or these.
[ame="http://www.ebay.com/itm/8-3-4-Mopar-axles-4-and-4-1-2-bolt-pattern-/291029123410?pt=Motors_Car_Truck_Parts_Accessories&hash=item43c2b00152&vxp=mtr"]8 3 4 Mopar Axles 4 034 and 4 1 2 034 Bolt Pattern | eBay[/ame]