If I recall... the downside was having to loosen the power steering belt and the AC compressor belt to allow the most rearward alternator belt to come off.

13mm socket to loosen the pivot bolt and clamp bolt on power steering pump.
Then using the 13mm loosen the tension bolt at top.

For AC use a 17 or 19mm wrench from bottom, two bolts.
The a 10mm, usually deep socket to loosen tension, from the top.

Now get both belts off and go after the Alternator belt.

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80 300D 340K Owned 30 yrs
83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day
02 Z71 Suburban 117,000
15 Toyota Prius 2600 miles
00 Harley Sportster 24k
09 Yamaha R6
03 Ninja 250