Looking for a 1997 GMC pick up service manuals the motor is a 4.5 2 wheel drive any ideas where i could find such a thing .... thx all

Welcome to AF, try E bay or the oe source Helms, or a subscription to alldata.com.

Max is right, eBay can be a great source for these factory service manuals. If you are patient and watch the site, sometimes you can get them for a steal. I have purchased many FSM from eBay for my various vehicles and I don't believe I've paid more than $30 to $35 including shipping for each, A far cry from what they cost new. You can even set up email alerts from eBay to let you know when someone puts one for your vehicle up for auction, another way to find out fast.