The present invention pertains to a trailer jack apparatus designed to facilitate the support and maneuvering of trailers. Specifically, the invention introduces a trailer jack equipped with a high-strength ball bearing at the point of ground contact, enhancing stability, durability, and ease of use during trailer hitching and unhitching processes.

The present invention pertains to a trailer jack apparatus designed to facilitate the support and maneuvering of trailers. Specifically, the invention introduces a trailer jack equipped with a high-strength ball bearing at the point of ground contact, enhancing stability, durability, and ease of use during trailer hitching and unhitching processes.

A cross-truss assembly, cross-truss, and method for installing the same on a vehicle chassis, such as that of an RV, is disclosed. The cross-truss assembly includes the vehicle chassis, the vehicle chassis having a plurality of frame rails that extend along a longitudinal direction of the vehicle chassis and that are configured to mount a vehicle body and a plurality of lateral members that join the plurality of frame rails together. The cross-truss is similarly arranged transverse to the plurality of frame rails and is fastened thereto. The cross-truss includes extension portions at each end that extend beyond the frame rails, and a leveling jack is mounted to each of the extension portions. The cross-truss is mounted to the vehicle frame by removing at least two outriggers from the vehicle frame and mounting the cross-truss to the vehicle frame in their place.

A cross-truss assembly, cross-truss, and method for installing the same on a vehicle chassis, such as that of an RV, is disclosed. The cross-truss assembly includes the vehicle chassis, the vehicle chassis having a plurality of frame rails that extend along a longitudinal direction of the vehicle chassis and that are configured to mount a vehicle body and a plurality of lateral members that join the plurality of frame rails together. The cross-truss is similarly arranged transverse to the plurality of frame rails and is fastened thereto. The cross-truss includes extension portions at each end that extend beyond the frame rails, and a leveling jack is mounted to each of the extension portions. The cross-truss is mounted to the vehicle frame by removing at least two outriggers from the vehicle frame and mounting the cross-truss to the vehicle frame in their place.