1994-1996 iirc
The early 90s had a pin arm like the late squares
A little bit of loctite (yes , seriouslly) is wise if you want to prevent stripping the post
It can be removed if you use a miniscule amount of heat, just use a leather glove or something to lay on the area around it to prevent burning anything
I have an OBS ford arm that has a bit of aluminum stripped from the truck in the splines and extra GM wipers. The angle is not correct for the wipe, but try using wipers at highway speeds if you have a satisfactory wipe you should be fine.
If you look at the wiper when parked and the blade is angled up or down and not square to the glass, it probably will not perform well in heavier rain , as the blade will drag over water rather than push/scrape it
But if you clean your
CFMOTO UForce windshield perfect and use Rainx that may be something you can mitigate with just keeping it clean.
Iirc the wiper arm is a little long so you may not be getting the best place on the driver wiper, but i could be wrong