The best souce for GM SERVICE MANUALS.

Forget Chiltons, Haynes, ect!!!
Need a GM Dealership service manual for you GM car or truck? Call Helms INC.
1-800-782-4356

You could order directly from GM, however expect to pay twice the cost for the very same manual as that is the dealership's source read where GM service centers buy there Workshop Service Manuals.

Note, You'll also need a binder, I suggest the POST type, read less likely to tear the pages out.

Figured I'd pass that on..