[79gmc5.3]

Originally Posted by glock35ipsc

Go here:

http://67-72chevytrucks.com/vboard/s...postcount=1256

and open the first .PDF there. On the top of page three is the Data Link Connector, and it shows what pins need wired. You will only have 4 when you are done.... data, power, and 2 grounds.

Give me a shout with any questions on the other wires.

Thanks! Bob Just remember you will have to explain it on a 3rd grade level when you talk to me about electrical stuff