Dell Client Driver Packs

I use the Dell client driver packs for Windows 7 with System Center Configuration Manager.  Basically I import a driver pack into ConfigMgr, then use in OSD imaging.  My question is this, Is there a way to deploy those same driver packs to machines that are already in use?

We run into the situation where, we will deploy a new client model with driver pack version A00, then after 6 months, a newer driver pack is available.  It is easy enough to import and use the newer driver pack into SCCM, but how can I update original machines that are at A00 (other then the obvious reimage)?

I am only looking for a tool for clients, not servers.

thanks in advance

Tony