How to wire this type of ignition coil?

[FMS88]

Which type of coil are you replacing? Is it a transformer type, which is like the NGK replacement (and the original stock coil), or the cylindrical, oil filled coil used on 1st Gen trucks? If you’re replacing a stock transformer coil, attach the mount bracket and ceramic ballast resistor to the NGK coil. The wire connections are the same.
If you’re not sure, post a picture so all can see what you’re up against.

Here's an earlier thread with much discussion and a picture of how to wire the transformer type coil:
http://www.mightyram50.net/vbulletin...=ignition+coil