I have a basic Bridgeport universal mill and a small (8 inch swing) Harrison lathe. I need to alter some home fabricated lower suspension arms from a race car. I cut off the stock compliant rubber bushed "eye" from the arms, and welded in a drilled and tapped buttress to take a rod end. I now find the geometry of the car has proven to need yet more negative camber. The rod ends are now threaded right out, so the ends of the threaded shanks are just flush with the inside walls of the buttresses. I need them about a quarter of an inch further exttended, and ideally for the rod ends to have less shank out of the buttress for added safety and strength. I have decided to bore ou the threaded holes to take a steel tube, internally threaded 5/8 UNF for the existing rod ends. I am unsure of the best way to hold the arms to allow me to drill concentrically with the existing threaded hole to take a sleeve which I envisage as having about a 5mm wall thickness. This will effectively extend the buttress further outboard, and the existing rod end will screw into it and use the same type of locknut against the end of the sleeve. Any clever ideas how to set this up, given I have very limited fixtures and tooling, and not a lot of experience with my machine tools? Thanks.
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