740 wagon rear wiper arm

The rear wiper arm on my 90 745 no longer provides sufficient pressure on the the wiper to get a good wipe. It seems like the spring has become weak. Nothing in stock at JY recently either.

Anyone solved this issue? Whats the easiest way?

Thanks and happy new year to everyone!

Get a new spring?

Go to the junkyard or beg in wanted.

Bend the spring to get some more tension and clean the pivot on the wiper arm.