The short bit of pipe (bush) that sits in the box section axel has a washer each side to help the axel pivot. The two outer bolts go through the box section axel with a large washer on the other side held on with nylock nuts. The bad part of the design is that the nylock nuts travel up and down in a arc shaped slot in the backing plate. Thinking a better design would of been for these bolts to be a bit longer and another washer added to the other side of the backing plate and then nylock nutted. This would support the axel a lot more and take a lot of pressure off the large centre pivot bolt.
My front end has been beefed up heaps thanks to the guy that did the welding but you can still see a slight flex in the main pivot bolt when you turn the steering wheel while the mower is stationary.
Should last a while
Rudolf
