This is exactly what I was looking for. If you are running Yukon Super Joints and mess up a zerk.. these are the same ones just $6 cheaper.

I purchased this just for a Toyota driveshaft so it didn’t have a traditional style fitting sticking out to get broke off in the rocks. It threaded in nice into the driveshaft, no more worry about breaking it off.

Finding Zerks.com was a pleasant surprise. Product were easy to find on the site, too. Zerks to be used in a staked in u joint motorcycle drive shaft. Product arrived quickly and fit exactly. It looks like a high quality product and fit like a champ in the new Elbe unjoint. I think you’ll be pleased with the product, I sure am!