Yes I put the tracks on the correct sides. This is a 76 duster with the catalytic converter hump and I am using 75 valiant buckets, so it has the flat track for the drivers inboard. I did swap seat bottoms and the drivers seat inboard bolster is still about 3/4" lower than the rest. Same result, so I think these seat bottoms are the same left/right. I think I will have to try shims between the tracks and reinforcement plates.