340 K member VS 318 K member

Ok folks....
The Washer was put there to make sure (to idiot proof the production line) that only the 340 K Member was put in the 340 cars.
The 340 K Member has extra welds where the Lower Control Arm Sleeves pass through it for reinforcement.
That is the only and most important difference between the 2 K Members.

Hope this clears this up.

Later,
Bruce B.