Inliners International Forums General Discussion Electrical 70 gmc wiring diagram needed.

Anyone have a 70 gmc wiring diagram? Its not in the service manual and is different than what is in the 71 manual. GM list 6905 as wiring supplement.

thanks, Mac

Go to http://www.chevytalk.com , pick the 60 -66 truck section , look to the top of page , there will be a series of " Stickies " . A couple of these ( Hilander's '60-'66 chevy truck website and Jolly's all inclusive '60-'66 GMC site ) will take you to various how-to's , tech tips, and wiring diagrams ! Hopefully , even though your truck is slightly newer than the listed years , maybe you'll find the answer to your question there ! Also try the appropriate year ( for your truck ) section of the forum . If not , try http://www.67-72chevytrucks.com or http://www.tennesseeclassictruckclub.com . Good luck !