The alternator should be done by an experienced tech. You have to take off the belt and retention it afterwards. This is the only drive belt for the engine.
Yes, the regulator tilts upward for removal.

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Benzmac:
Donnie Drummonds
1991 GMC Syclone
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
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