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Originally Posted by Tony Smith
Ford explained the problem well in their Service Bulletins.
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Originally Posted by Bob Carriere
Thanks for the diagram Tony..... explains a lot...... also shows the roller bearing...... the ribs on the brake drum which I have seen in books only and the picture of the LRDG I posted yesterday.
Could you tell me from what book/manual it was taken from so I can see if Grant has such a copy.....
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It is in the "FORD Canada Service Bulletins", the brake drum pictured is from the Ford Truck. I used the diagram because it illustrated quite well how tire diameter relates to kingpin geometry.
Ford don't use a spacer, they use a one piece cast hub/drum with proper roller bearings. Instead of different offset wheels, they use a different dimension on the hub/drum. The brake backing pate and brake shoes remain the same, as do the spindle and wheel bearings. Ford also used the same axle, spindle and bearings with a different hub/drum for the F8 and C11ADF.