spherical bearing

in a single shear application with the uniball laid like a stock balljoint

If done properly, the bottom balljoint could use a 9/16 bolt and the upper could use a 1/2 bolt. Obviously the smaller the bolt, the more available angle.

so the upper can just be drilled to 1/2 inch or does it need to be drilled and sleeved?

so whats the proper way max????

I'm sorry! I thought for sure that I answered this...

There are a few differet ways to create a good heim/spindle interface. The easiest is to use a bolt big enough that the spindle needs to be drilled out far enough to eliminate any of the remaning taper, but that typically will leave you with and oversized bolt with little useable articulation in the heim. Another way is to sleeve the spindle so that you can use the best sized bolt for the application. An even better way would be to have a tapered bolt made to fit into the spindle and fit the heim. My prefered method is to weld one of the misalignments to the top of the spindle do that the bolt is only used to keep the heim on the spindle, not under any shear load, but that needs to be addressed properly too...

any pictures of them mounted?

This is what Max is talking about.

max if i sent you spindles could you weld the misalignment spacer to them?

Sure, I guess. Why not?