wipers are driving me crazy!

In some cases the wiper pivots are in such poor condition the resistance in them exceeds the capabilities of the plastic bushings. Refurbishing those pivot assemblies isn't easy and nobody offers some of their parts. It can be done though and the result is well worth the effort since the wipers will run both trouble free and quiet too.
Placing the wiper linkage inside the cabin is the most disappointing bit of Chrysler engineering for me simply because it gets noisey with age.
My wipers do run smooth and quiet today even on dry glass but again, it aint easy.
Good luck with them.