Ferrari 412 GT Workshop Manuals
If you have to execute maintenance for your Ferrari 412 GT then it is always a good idea to have access to a Workshop Manual to keep just for personal reference just in case you need to know proven methods to take off a particular component like the Drive Shaft and fit it again adequately.
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Ferrari 412 GT Workshop Manuals are able to offer particular diagnostic info for the vehicle so if something is not working it will help you understand what the problem is and tips on how to resolve it. You can then decide if this can be achieved yourself or that the job is simply too big you can book your 412 GT in with a local garage.