I just opened my NYC SW7; the couplers are ok but I found a new problem: the front truck has traction tires on all four wheels, so I have outside rail pickup on only the two wheels from the back truck. Lionel installed an incorrect wheel set on the front truck; should have installed a wheel set with no traction tires. Picture from STE earlier in this thread shows front truck with only two traction tires. Please check your SW7s for this error.
Update: Charles Ro sent me a replacement wheel set. Thank you, Butch.
Allan