The GM Packard division has created three revolutionary electrical connectors that every "do-it-yourself" truck owner should be familiar with.

There is also a weather pack die available separately, or if you use a lot of weather pack type wiring connectors you might be interested in the Weather Pack Quick Change Ratchet Crimp Kit (PN T3005).

Understand the three most common plug options from GM. The Packard 56, Weather Pack, and Metri Pack, read all the details here!