2013 1000 max xt outlander rear drive shaft grease fitting. Need to replace it, has a

The grease fitting on the rear drive shaft had the valve fall out. Can’t grease it and it’s getting water and dirt in it. I tried a couple times to get at the fitting to remove and install a new one. Does anyone have a special way of doing this without splitting the u joint?

2013 1000 max xt outlander rear drive shaft grease fitting. Need to replace it, has a

The grease fitting on the rear drive shaft had the valve fall out. Can’t grease it and it’s getting water and dirt in it. I tried a couple times to get at the fitting to remove and install a new one. Does anyone have a special way of doing this without splitting the u joint?