Most auxiliary transmissions are just dual ranges — low gear for towing and high gear for running empty. Gear Vendors Under/Overdrive is built for gear-splitting (giving you a progression of gears with half the drop in rpm) so you maintain power with close ratio performance. Gear Vendors is the only auxiliary transmission that permits shifting under any throttle condition. After it’s installed, your vehicle will have twice as many underdrive ratios plus 3rd-direct and an overdrive gear (3rd-over) for towing. Provides increased engine performance of more than 40 hp and 60 lb. ft. of torque without modification to the engine. The overdrive will pay for itself in fuel mileage alone. In addition, your engine slows down 22%, so the same rpms that currently take you 500 miles will take you 640 miles. Mfr. 2 year warranty for noncommercial use. USA. Special Order.
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