Last night while mocking up the alternator with a 99-01 braket(and alternator) it wouldn't fit. Our next guess was one from a F-150 but anyone that has a sullivan, what one did you use?
I was running a 1" spacer (pretty sure it was 1") with my suly upper and lower and still had to grind a little off the stud/nut that attaches the electrical cable on top of the alternator but it does fit.
01 alternator. used a 1" spacer as well. i also trimmed the power cable stud and dropped the alternator about 1/4" by grinding on the bottom two mounting points. It was still a tight squeeze