Lubricating front end balljoints
If your balljoints have a zerk fitting, also known as a grease fittings, you can add some grease to the joints with a grease gun by getting under the truck. Most OEM applications don't have them anymore and replacement of the joint is your only option if the joint has failed. You can purchase new Ball joints with the zerk fitting (moog) is the brand, so the replacement will last longer with regular greasings.
Yeah, like Tom said- I would add that the balljoints are not any different, but the manufacturers stopped putting zerks on trucks, WHY? we can speculate, they must still need new grease after a while- you could always get some zerks, drill holes into the joint where the zerks USED to go and install your own- is it worth it? who knows?!
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