I need to do this also. I seen one cideo where the guy drilled and tapped aome holes to put grease zerks in allowing it to be greased. The seals on the end of the disconnect, allowes water in. Yhere may also be the option of greasing the seal similar to how youngeease them in snowmobiles, using greese in a syringe, and i jecting it into the seal.
Yes, it seems like the manufacturer would have thought out the poor sealing issues since they were going on a Jeep. Thankfully, mine has been working well since this repair job!
The reason it doesnt come with a zerk is because you're supposed to open the housing and REPLACE the old grease with new. Grease nipplee only work if there're exit points for old grease when you pump in new grease.
