Abstract: A trailer tongue jack includes a grease (or zerk) fitting for providing grease to internal parts The jack includes an outer tube and an inner telescoping tube. A threaded insert (or nut) is fixedly attached inside an upper end of the inner telescoping tube. A screw shaft threadedly cooperates with the insert to extend or retract the inner telescoping tube from a lower end of the outer tube. A crank is provided to turn the screw shaft either directly or through gears, and a thrust bearing carries a vertical load between the screw shaft and the outer tube. The grease fitting allows the internal parts, and the thrust bearing in particular, to be easily lubricated.

Abstract: A wheel liner system for attaching a wheel liner to a wheel of a vehicle having a mounting surface and lug nuts engaging lugs adjacent the mounting surface. The wheel liner has an annular peripheral portion with an inner perimeter, and a center portion with a step sidewall extending from the inner perimeter to a plateau having a plurality of holes which receive the lug nuts. The plateau is preferably spaced from the mounting surface to position the plurality of holes adjacent corner portions of the lug nuts, which enables the wheel liner to transitionally contact and support the corner portions of the lug nuts during installation. Preferably the wheel liner is releasably secured to the wheel using a hub cover having a deck portion with at least two apertures and an outer skirt extending below the deck portion. The outer skirt matingly abuts and surrounds the step sidewall of the wheel liner to center the hub cover and the wheel liner relative to each other.

Abstract: A decorative wheel covering for use on truck vehicles or the like defines a wheel cover supported only at its center portion and having a contour closely matching the underlying wheel. A plate covering covers the truck wheel assembly mounting plate and hub to complete the wheel covering.