Tools and parts

Preparation

As always, disconnect the battery leads to prevent inadvertent shorts.

Loosen the bottom bolts and bracket bolts for your stock alternator.

Remove the stock alternator belt.

Disconnect all wires to the stock alternator.

Remove the stock alternator.

Remove the existing alternator bracket, but leave the adjusting arm in place.

Retain the mounting hardware.

Assembly

Mount the new alternator bracket using the supplied hardware and hex wrench.

Place the GM alternator in position in the bracket.

Crawl under the vehicle and insert the new lower pivot bolt through the alternator and bracket. Snug the nylock nut onto the bolt, but don't tighten the assembly down yet.

Swing the alternator into position and re-use the existing top bolt from your stock alternator to attach it through the adjusting arm. Again, don't tighten the bolt down all the way just yet.

Once you've got the alternator in rough position, slip the new belt into place on the pulleys, then tension the belt as you normally would.

Tighten the alternator top bolt and adjusting arm bolt.

Re-check the tension on the belt. If all is well, crawl back under the car and tighten the bottom pivot bolt securely.

Plug the supplied pig-tail lead into the back of the alternator and into the existing wiring harness connector from the stock alternator.

Connect the other lead to the alternator's output post, and thread it into position in the engine compartment.

Reconnect the negative and positive terminals of the battery.

Connect the new alternator's lead to the battery positive terminal.

Fire up the truck and check out the steady new power!