Get the alternator mounted first, then worry about the belts. There are 2 long mounting bolts. Put one of them on first (do not tighten), then use a pry bar to line up the second bolt.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked