On my 1987 325i convertible's windshield wiper mechanism, the "Drive Rod" (Part 61611370796) recently dropped off of the "Linkage for Wiper" (Part 61611370792). http://www.realoem.com/bmw/showparts.do?model=BB13&mospid=47326&btnr=61_0885&hg=61&fg=45 I removed the driver-side wiper, plastic cover plate, greased things up and squeezed the Drive Rod back onto the Linkage for Wiper with a pair of Channel Lock pliers. The Drive Rod when on very easily so now I am worried that it's just barely hanging on there. I have two questions. 1.) is that connection really only a press fit? (I can't see a spot for a pin, clip or nut). 2.) Does the Drive Rod need occasional replacement due to wear? The wipers a working again, but it's going to be months before it rains and I'd hate to lose the wipers on some winding road in a rainstorm.