(must be in the USA to access)
I found this info. on another website:
1. click on link:
http://www.powerlibrary.net/Remote/Remote.asp?ID=meadville2. enter the following as the code: pl249412345678
3. click on "Auto Repair Reference Center" in the middle of the page
4. and you're in! find your model, year, make etc...
I hope this will help you.
It has a good description(w/pix) on how to rebuild drum brakes in(1974... Chevrolet... C10... V8... Brakes... Drum Brakes...)