I forget the diameter (7/8 I think), but get a bolt just large enough to bite into the aluminum when threaded in from the bottom. Then use a drift and hammer from inside to pound on the bolt, which will pull the aluminum with it. Works better with a impact wrench to really jam the bolt in.
Basically, plug the hole in the aluminum by threading in a bigger bolt from the underside, then pound on the "plug" from inside to drive it out.
Sent from my Galaxy Nexus
Basically, plug the hole in the aluminum by threading in a bigger bolt from the underside, then pound on the "plug" from inside to drive it out.
Sent from my Galaxy Nexus
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