Don't even waste your time trying to do it without an impact gun. Simply remove the alternator and take it somewhere like snoozer said if you don't have an impact gun. I've had all three pulleys on my for over 4 years, and I used the stock belt. I'd do all three, you will not have any charging issues. I had a 600watt crossfire amp hooked up to a 12" RF sub, in addtition to my mach 460 stereo back in the day, and I never had any issues with a dead battery. Heck, I just replaced my stock battery this past summer.