I just did a Cherokee swap on my wipers and running 14" blades. I loosely followed this youtube,
Youtube link
He says cut the blades shorter by 3 inches but I went a step further and custom trimmed each arm length to fit specifically in it's location. The arms are readily available on Amazon. But finding blades with a pin mount was more difficult. what I found was that Napa has a blade called Exact Fit that has a pin mount. PN 6-014-1. This gives me a front windshield blade and a rear window wiper arm. Below is my notes that I typed into my computer Bronco file which says basically the same thing as what I just typed out here.
Be aware that the right (passenger) side and left (drivers) side have the arms custom trimmed to fit. So the arms are not interchangeable. Also note that if the arms appear to almost but not quite fit then remove the wiper blades one at a time and flip them over and reinstall them. It is currently running
Wiper arms from 1986 Jeep Cherokee rear wiper arms. But the blades are for the front windshield.
You are looking for blades that fit with a pin mount.
Napa 6-014-1 Exact Fit blades which are 14 inch windshield blades hence the 014 in the part number.
You can also go with the 6-013-1 blades which are an inch shorter if you are having real trouble with the 14 inch blades.