On mine I had to solder on new wires to each connector and buy the new connections. The other ones were dry rotted and nasty. These ones were a direct fit. I got the parts at Oreilly auto parts if I am not mistaken .
I got my alternator at Autozone. I kind of dont like the amount of power it puts out. If I put on the a/c blower and lights, it will drop inbetween the middle and low on the voltage meter. If I were to put on my subs with that combination, I imagine it would die. This is with a brand new 800amp cold 1000 warm cranking amps duralast gold battery.
http://www.pa-performance.com/ they have the best alternators period (it's not the one i am using but i am very much considering the switch)
You can get a
$289 130amp, 100 Amps idle 200 amps load max
$199 130amp, 80 Amps idle 160 amps load max
You can get those polished or powder coated too for extra $$
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89 GT Hatch: Custom M90 Supercharged w/ Ported Trickflow Trackheat Heads, Stage 1 cam, Streetheat lower / Sheet metal upper, Tweecer RT & PLX Wideband, 75mm TB, 1.6 Roller rockers, 3.73s, MSD 6a, Canton 7qt Pan+ Windage tray, 36LB Injectors, 200 amp Alternator, 75mm Pro-Mas MAF, 190lph fuel pump,Spec Stage 1 Clutch,SouthSide LCA's, Pro 5.0 Shifter, Steeda CC Plates / Springs, FMS Aluminum Driveshaft, New T5 w/ 2.95 first gear, Underdrive pullies, Zirgo 3300Cfm Elec. Fan, AFCO alum. radiator