Don't risk your vehicle's performance on knock-off axle components. Dana offers the genuine Spicer medium- and heavy-duty axle components you need, along with the peace of mind that comes from knowing they contain only brand new genuine Spicer parts. Dana offers the genuine Spicer medium- and heavy-duty axle components you need, along with the peace of mind that comes from knowing they contain only brand new genuine Spicer parts.