Abstract: An adjustable and modifiable jack plate for attaching and positioning an outboard motor to the transom of a boat. The jack plate has a lift plate to attach the outboard motor, the lift plate having cylindrical polymer bearings on each of two lateral sides, the two bearings slidingly received in bearing retainers configured as a pair of C-shaped channel members, each channel member having a unitary vertical flange. Each flange being connected to a cooperating flange of a pair of L-shaped wing brackets, the cooperating flanges forming a lap joint. The L-shaped brackets are easily replaced with different L-shaped brackets having different set back distances for optimizing performance. A control system includes a user interface that has up and down buttons, a plurality of memory buttons for returning the lift plate to specific stored positions, and a numeric readout the provides a specific lift measurement in units such as inches.