You will be able to tow your 2005 Jetta Wagon and your 2005 Ford F-350 with the same tow bar. We have tow bars available which are rated for towing the F-350 so you will need to select one of those.
The RoadMaster Blackhawk 2 All Terrain Tow Bar, item # RM-422, is rated at 10,000 lbs capacity so it'll work for your truck. There's also no reason it can't be used with the Jetta too.
You then need a base plate kit for each vehicle. For the Jetta wagon, you need the Roadmaster EZ Base Plate... view full answer...