WJCO
Meme King
This has come up a couple of times, so I thought I'd add a thread here. This was new info to me as well. A lot of the newer ProSteer Ball joints have a 'not so common' style of grease zerk on the lower ball joint. It has a small concave dish with a small check ball in the center. It looks like this.
To add grease, you can temporarily remove it and install a more common zerk fitting for greasing and then put the original one back, however you can also buy a needle for your grease gun that will work just fine. There are a few different types of needles, so make sure and fit the right one. Chances are if you have a grease gun kit, it will already contain multiple sizes. It looks like this.
Install the needle on your grease gun and firmly press it into the zerk on the ball joint keeping it very straight. When you pull the grease handle, if you're doing it correctly, you will feel resistance on the handle and you will not see any grease leaking anywhere. If you are doing it incorrectly, you won't feel any resistance and you will see grease leaking around the needle or see grease coming out of the needle tip instead of going into the zerk.
Basically what is happening is the grease coming out of the needle is overcoming that check ball in the zerk and going into the joint. As you can see, it is a very narrow stream of grease going into the joint so the needle has to be tight and straight in the grease zerk.
To add grease, you can temporarily remove it and install a more common zerk fitting for greasing and then put the original one back, however you can also buy a needle for your grease gun that will work just fine. There are a few different types of needles, so make sure and fit the right one. Chances are if you have a grease gun kit, it will already contain multiple sizes. It looks like this.
Install the needle on your grease gun and firmly press it into the zerk on the ball joint keeping it very straight. When you pull the grease handle, if you're doing it correctly, you will feel resistance on the handle and you will not see any grease leaking anywhere. If you are doing it incorrectly, you won't feel any resistance and you will see grease leaking around the needle or see grease coming out of the needle tip instead of going into the zerk.
Basically what is happening is the grease coming out of the needle is overcoming that check ball in the zerk and going into the joint. As you can see, it is a very narrow stream of grease going into the joint so the needle has to be tight and straight in the grease zerk.