If you have something to compress the Spring and pop the Ball Joint loose from the LCA you can remove the boot and add Grease. More complicated and More work but if the Joint is otherwise good it is better in the long run.

Several years ago one of our Members used a Meat Syringe (for injecting flavors into Meat) that has a larger ID needle and injected Grease Through the Boot. The Meat Syringes show up at the local 99 cent stores sometimes.

In the past they sold Needles that would attach to your Grease Gun.

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84 300D, 82 Volvo 244Gl Diesel