So both of these are labeled for: medium-Dimensioned and heavy HGV's, buses and construction site and other special vehicles per Stahwille. But the designs are a bit different. Any idea of the actual differences between them as there is a $200 difference is pricing. For reference I'm doing the ball joints on an '04 Excursion and need it to get done in one day per side at least. Already have the ball joint press so that's done.