Removal of the drum-brake backing plate marks the end of disassembly--the Baer system uses the stock spindle, which can remain on the vehicle for the installation. One modification may be necessary however. For most of the cars covered by this system, the steering arm is retained with 1/2-inch bolts, which is what the Baer system uses. However, some early models used 7/16-inch bolts. In these instances, the holes in the spindles and steering arms will have to be enlarged. This can be accomplished with a drill and a 1/2-inch bit, but a better approach is to use a 1/2-inch tapered reamer, which is available through Baer.