The alternator belts on my 84 300CD were changed a few years back. I remember getting good tension on both belts (belts were same manufacturer and run number). After a few days of squealing and other noises from under the bonnet I noticed one belt is tight and the other one is loose and whipping around.

I'm not looking forward to a few hours on my back in snow and -15C temps replacing the belts again so is it possible to cut the loose belt and run it on on the single belt for a month until the weather is better?

I know there's the risk that I could lose the other belt and possibly be stranded, but other than that are there any other risks involved in running a dual belt system with one belt for a few weeks?

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1984 300CD 155k miles
1983 300TD 199k miles
2005 Legacy GT Wagon