AHJHSP-T-12V-DP12 ATLAS™ Hole Shot Plate with Transducer Cut Out T-H Marine ATLAS™ Hydraulic Jack Plate - 12 setback AHJ-12V-DP is truly the next generation in jack plate design, built for the heaviest and most powerful V6 engines on the market today, even the big four strokes. Our innovative high tech engineered polymer rod and slot lifting design guarantees trouble free action. This plate also features the best concept in one-piece hydraulics from the most respected name in hydraulic design, providing the be