OK the replacement is done. I didn't have to remove the shroud. Banged my thumb getting the new alternator in place and belt looped onto it...but the job only took about 20 minutes. multimeter now reads 14V on the batteries when the truck is running compared to the 11.95 it was registering with the old alternator. Even noticed my headlights shine a bit brighter now. Is that just my imagination or does the stronger volt output impact that as well? Thanks so much for all the tips!
Here is one think that can happen because of low voltage.... see my thread about the FICM Repair that is currently in-progress for my truck. This unit takes the 12VDC and "amplifies" it to 48VDC..... mine does not do that anymore.....