Kargo Master Single Drop Down Ladder Rack E-Series/GM (40953) - Manual (Page 3)

40953 Installation Instructions
Step 1
Measure width of rain gutter front and rear, install feet using 3/8x3/4 bolts with flat and lock washers approximately in
that location making sure to be an equal distance from the center of the cross bow.Leave loose until you set the
assembly onto the vehicle. Most vans have a wider rain gutter towards the front of the vehicle.