two days, two problems. just got my 70 inspected today(passed).
as I'm leaving the garage my running lights blow a fuse, I replace the fuse go two miles blow another fuse. Finally get home and try to fix the problem and the mice have used my wiring diagrams for nesting material. any body know of a site that has diagrams for 70 blazers. thanks.

If you buy the '70 Chevy Truck Series 10-20-30- Chassis Service Manual from the part vendor of your choice (about $30), you get the schematics in the back of the book. They will also sell you the wiring diagrams separately for $5 bucks for 3 or 4 pages. That's a ripoff. The full manual you can't keep these trucks running without. Get the Chassis Overhaul Manual too.

http://www.geocities.com/chevroletc1070/wiringdias.html

Thanks easy, exactly what I needed.