That's the tool I bought Edveen. Here's a link where a fellow explains the crimp (and where I got the idea to close the 'U' a little before crimping.
) He's crimping pin connectors, but the wire end is the same as the PICO 1559's.
http://www.aeroelectric.com/articles.../matenlok.html
Edveen, I don't know the exact years, early 60's to late 70's for sure though. They are the brass female spade connectors that fit in the plastic connectors on the wiring harnesses. And they have the little 'tang' on the back side to keep them in the connector.
Rocketraider, I bought the connectors and crimping tool at Baxter Auto Parts, a Pacific Northwest auto chain. They also had a pair similar to the one the guy in the link above is using. But they were like $43. I figure I'll look around (maybe Radio Shack) for a better/cheaper pair. I only crimped a small wire. But I'm not sure the tool would crimp 10 or 12 ga. on the insulation. Pretty sure they would do the bare wire.
I've seen Performance Tools at several auto stores, Autozone for sure. They could order them I would think.
Dan, I agree a little solder is a good thing. This is a way to repair a factory connector & still have it look like it did.
Don