GM never designed a vehicle with an eye toward service. Their concern is how it can go together the fastest on the assembly line. Also, there is no rhyme or reason as to where they mount things. The generator can be in one location in one vehicle, and a totally different location on the same size engine in a different vehicle.
I looked up the instructions for yours and found there's a lot of variables that I and probably you can't answer. You're going to have to look for yourself to see if you want to attempt this job. For the choices I selected, there are 16 steps in the list of instructions that include removing engine mounts to roll the engine forward to access some bolts, remove the drive belt tensioner, remove the generator's bracket, remove the power steering pump with a warning to not disconnect the hoses, and other steps.
There's also a tip posted that suggests lowering the engine cradle with the engine on it to make generator removal easier. If you want to try that, don't start until I explain what can happen to handling and steering response, and how to avoid those miserable problems.
I wasn't able to copy and paste the instructions. Your best bet is to get a copy of the manufacturer's service manual, then read through the steps with the line drawings to see if you want to attempt this job.
Friday, March 13th, 2015 AT 5:20 PM