Hint on the R&R, assuming you're working on ramps or jackstands.
Remove negative battery cable, THEN POSITIVE ONE. Do NOT leave either side connected (otherwise a short IS possible and you WON'T like it if you do!)
Unplug the pax side fan, unclip the wire, then remove the spider (the fan comes out with the spider.) Place aside.
Remove serpentine belt.
Disconnect compressor electrical connector and put aside so the wire to the clutch doesn't get damaged.
Loosen the A/C compressor bolts slightly.
Place large flat-blade screwdriver or socket extension on each of the two boltheads to get into enough clear space, hit with small hammer a couple of times (it doesn't take a lot of force.)
This will retract the sleeve that locks the compressor in place and now when you remove the bolts the compressor will drop right out. Put it on the upturned milk crate or similar you have ready for this purpose; don't hang it from the hoses!
Remove alternator electrical connections now that they're easy to get to.
Now loosen the alternator bolts slightly. Then do the same with THEM you did with the AC compressor bolts to retract the sleeves on the alternator. Then remove the bolts. The alternator will come right out -- no prying necessary. You need to rotate the lugs just right to clear the radiator and bracket on the way out, but it WILL clear.
Opposite order for replacement, obviously.
Two-beer (about an hour) job.
BTW the stealer wanted $1,200 to replace the alternator on a friend's ALH, as by the flat-rate book it's a hella-nice amount of time. I've done two others, plus a failed pulley on my car that I nursed home from *Michigan to Florida* as I couldn't get the it off in a friend's driveway using the correct tools (and thus had to pull the alternator and use my bench vise) since then and have yet to pull a front clip on any of them nor did I need to drain coolant or discharge the A/C.
