Skip to main content
Cart, empty

Moog suspension & steering

Moog's Problem Solver line is defined by putting a grease fitting where the original was sealed for life. A sealed joint cannot be serviced and cannot flush out the grit that eventually destroys it; a greasable one can, which is why Moog parts are common on trucks that work.

Why a grease fitting is an engineering position

Almost every modern ball joint leaves the factory sealed. It is cheaper, it needs no maintenance schedule, and it lasts about as long as the warranty. What it cannot do is expel contamination. Once water and grit pass a torn boot, the grease inside is abrasive paste and the joint is finished.

Moog's Problem Solver designs reintroduce the grease fitting deliberately. Fresh grease pushed in forces the old, contaminated grease out past the seal. On a vehicle that tows, carries weight, or sees unpaved surfaces, that single feature is the difference between a joint that is replaced and one that is maintained.

The powdered-metal bearing Moog uses inside these joints is designed to hold grease in its pores rather than shed it. The result is a part that is heavier and costs more than an economy joint, and outlives several of them.

The name reaches back to the Moog Automotive works in St. Louis, and the Problem Solver trademark has been attached to this design philosophy since the 1960s. The internal component Moog calls a gusher bearing is slotted so that injected grease is forced through the bearing face itself rather than merely around it.

Checked

5 parts in our range