Hello Ronald Jackman,
What you are looking for depends on your level of
commitment... and the Word "FACTORY
PROFESSIONAL mechanics use "workshop
(I myself was raised on "MOTORS
" & "Mitchell"..
Frankly I don't know if they still survive...
I now MAKE A HABIT
of buying the
MANUALS from the DEALERS
I buy their cars
(old, opinionated & retired... I seriously don't trust dealers)
Most of my reading does not involve the SPECIALTY
TOOLS that currently FLOOD modern mechanics.
If you are looking for heap general information...
CHILTON or Haynes might be a better choice... but
I have saved BIG MONEY knowing how to
quickly & easily resolves issues MYSELF.
HAYNES... (some previously owned)
GMC Sierra Service Manual eBay
Real set FACTORY
2012 Chevy Silverado TRUCK GMC Sierra Denali Service Shop Repair Manual...
Hope this helps
Carnac the Magnificent