Basically the front two holes line up like they were made for it and the rear brackets we cut off and we made our own they were 40mm wide, 20mm high and 50mm long. We cut all the brackets off and welded the new brackets about half way down the vz rails.
Basically we bolted the brackets to the floor and and tac-welded them with the seat rails bolted to the front holes before welding them properly. Electric seats still work and everything...
Bookmarks