The pillars are where a van build looks unfinished. Factory pillars are bare stamped steel with wiring, seatbelt anchors and the infamous Transit "blob" - the moulded roof-rib bulge that no flat panel will ever cover.

These parts are moulded to the exact pillar geometry so they clip and screw into existing points. B-pillars flank the slider door and are sold driver and passenger side because they are not mirror images. C-pillars sit mid-body behind the slider. D-pillars and rear-door threshold kits finish the back opening, which is the area that takes the most abuse when you are loading gear.

Roof height matters: mid-roof and high-roof Transit blob covers are different parts. Trimming the whole van instead? A full interior trim kit is cheaper than buying pillars individually. Windows in the same wall? See window trim rings.