This documentation details how to replace the offside (drivers side/Right hand side) driveshaft on a 2003 right hand drive Volvo S60.
As far as I know, the process for Volvo V70's is exactly the same.
The offside driveshaft on the S60 is commonly damaged when replacing the Lower Control Arm - the shaft can easily be pulled out of the inner CV joint by accident. In order to resolve that, you need to remove the driveshaft and either rebuild the CV joint or put a new driveshaft.
I'm neither delicate nor patient enough to rebuild a CV joint, so I decided just to put a new driveshaft in.
This documentation details the process I followed.