Update: Not a big one, but why not. I scored a brandy new alternator from an '89 Sedan deVille at the junkyard a few weeks ago. This alternator must've been just thrown in before the car was junked because it looks fresh outta the box. I swapped it into the Allante and it is a 99.9% perfect fit. The connections and mounting bolts are all the same, the only difference is the third mounting bolt (on the back) is in a different spot on the 4.5 DeVille but the alternator is secured perfectly and is working perfectly, the car is also running a lot smoother with the proper tension on the serpentine belt. The previous owner made a bracket and put a Frankenstein 100 amp alternator in there most likely out of a Chevy/GMC Silverado/Sierra which was putting out inadequate charge and way too much tension on the belt.

My next target is to get the fuel leak fixed, gas tank may have to come down for this one.....