GM Crankshaft Sensor tool

I need to get one of these and use it one time . Is there anyone out there knows where I can rent one. I checked with autozone and they do not have it. If you have one and don't need it I may buy it.

Well, GM specialty tools are generally only supposed to be used by GM Service departments, but if you talk to a Service manager at one of these they might be able to order one for you as long as you pay up front. And if he can't do that, ask if there's an aftermarket brand available, but this is something that only GM service managers would know.

Has anyone used the tool made by Thexton Part #421 alignment gauge

If you're talking about that tool in the link below, i believe that will get the job done.

http://www.tooldiscounter.com/ItemDisplay.cfm?lookup=THE421