How to change the distributor - 1992 GMC Sonoma

Unfortunately there is no simple answer to your question.It depends on your skill level as there are many intricate things that need to be done before you even start the job.Firstly you need to determine the timing settings for your make or model.Secondly you need to find the timing marks for the engine and set the engine up at top dead centre.this means that the first cylinder is at the top of its compression stroke.It is then important that the motor cannot be rotated in any direction because to do so will completely ruin your chances of tying the motor with a new distributor.Thirdly you'll need the equipment to carry out the removal and replacement of the distributor.Finally you need a timing light to reset the initial timing once the repair has been completed.
I would suggest that this is a repair that should be carried out by a skilled person. Not necessarily a mechanic but somebody who has training in that area.
Do you still proceed?
regardsTrevor