What securing method is used for the pitman arm?

The pitman arm is a critical component in a vehicle's steering mechanism, connecting the steering gear to the steering linkages. The correct method for securing the pitman arm is the use of a castle nut and cotter key.

This method is effective because the castle nut has notches that align with the cotter key, allowing for a secure fit that prevents the nut from loosening due to vibration or movement while the vehicle is in operation. The presence of the cotter key prevents the castle nut from backing off once it has been properly tightened.

Using welded, clamped, or glued methods is not appropriate for securing a pitman arm. Welding may not allow for adjustment or removal and could create stress points. Clamping could lead to inadequate support and a risk of the connection failing while driving. Gluing is not suitable for heavy-duty applications like steering, where mechanical integrity and strength are paramount. This highlights why the castle nut and cotter key combination is the most reliable and widely accepted method for securing this critical part of the steering system.