Serial numbers reveal the dryer was built in 1984 and washer in 1985. Nice clean set for sure. The outer tubs on these washers were definitely more prone to rusting through versus pre 1980.
The dryer hardly looks used. Depending on where the washer is leaking that may or may not be too big of a problem. Who knows what water got into. These were from the time where LK was the best that could be had at any price.
WK78