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Step 3Attach the Cross Members
Place the feet on the corners of the car where you think they could support the most weight. You can test the location by pushing on the feet to see if your roof is sturdy. What you do NOT want to see if a lot of flexing of your roof, if you do, pick anoher location.
Lay one of the 2x4's across both feet and try to center it as best you can. You will notice that due the curve of the roof, the 2x4 crossmember does not lay flat on the feet. This is ok.
Place a shim (a wedge shaped piece of wood) or any thin scrap wood in the gap between the foot and the cross member and drive one screw through the cross member nearest the point where the foot and cross member touch (but at least 1/2 inch from the edge of the wood). Drive a second screw in the opposite corner of the same joint, through the shim/scrapwood.
Don't worry when the shim/scrapwood breaks and falls out, we only needed it to provide a spacer. Once the screw is on place it has performed it's function.
Repeat for the remaining three feet.
Lay one of the 2x4's across both feet and try to center it as best you can. You will notice that due the curve of the roof, the 2x4 crossmember does not lay flat on the feet. This is ok.
Place a shim (a wedge shaped piece of wood) or any thin scrap wood in the gap between the foot and the cross member and drive one screw through the cross member nearest the point where the foot and cross member touch (but at least 1/2 inch from the edge of the wood). Drive a second screw in the opposite corner of the same joint, through the shim/scrapwood.
Don't worry when the shim/scrapwood breaks and falls out, we only needed it to provide a spacer. Once the screw is on place it has performed it's function.
Repeat for the remaining three feet.
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