the very front and the very rear are alot different,the front one is the smallest of all as I recall,but also were they go in the holes in the side there are 3 different places to connect them ,if I recall correctly its been awhile,and they dont set in the top hole,maybe one of them does and they don't actually touch the roof top but are close,,also look at the rod ends closely as mine had dabs of paint there and all were a different color