Upgrade to a 3g alternator tonight. I grabbed a 98 v6 mustang alternator from pick n pull for about $30, along with a 2 speed taurus fan to be used later. The install was pretty easy as far as conversions go. It tested about 135 amps max. I left all the old wiring in just in case I want to change back for some reason. I plugged in where the old regulator was and doubled the wires back under the core support then up to the alternator. It got a little late so I'll have to loom everything another day. I guess the headlights are brighter, but I am definitely sure it runs smoother at idle and while driving, and especially when the fans kick on. When I switched to duraspark, back when I had the I6, I've always had a pulsing surge while cruising. Fixed.
Two alternators side by side, both 7" 12 o clock. The new mustang alternator isnt threaded so I need to tap it to make adjustment easier. I ground the flange off the old bolt so I could reverse it and get enough thread engagement, with some loctite, and I put a washer on the back that only hits the inner bearing race, a little over 1/16" thick.
Two wires going into the 3g harness, one is for alt light, other is ign
The other end of these two wires at the old regulator
New terminal ring for ground, metric bolt to the back of the alternator for ground.
wired up ready to install, except the power and ground come from the bottom instead of this.
Operational, need to tidy up wiring.