Back up your vehicle to the coupler of your hitch. Center the ball directly under the coupler (duh, right?). Lower your jack down so that the coupler connects with the ball and you raise up the jack up until it can't go up any more. (Don't raise jack all the way up yet if you have a weight distribution hitch that requires you to lift the hitch as well as the back of the tow vehicle.)
From the center of the shaft to the front outside edge of the motor housing is 3-1/2 inches. I included some of the mounting plate when I measured for height, which is 8-1/4 inches, since that sticks out over the shaft as well. I also measured from the bracket that fixes to your trailer's A-frame to the bottom of the mounting plate for the motor and that measured 13 inches. See included picture for a visual. To make sure that you have a secure power connection to the jack motor I recommend...
Those who are interested in buying items like these have many different types available for their needs. For example, a trailer fender is necessary for protecting your RV from impact damage. They can fit where old ones were and fix any auto body concerns from which your vehicle suffered. More specific types include RV awnings that provide you with a comfortable place to sit during rainy weather.
Yes! The Stromberg Carlson Electric Trailer Jack # JET-3755 is compatible with the Lippert # LC429756 that you referenced and it does measure the 8-1/2" when retracted. You could potentially use a caster wheel like part # PS1400750340 but this would cut your tongue weight from 3,500 lbs down to 1,200 lbs. All of our caster and wheel sets have a much lower weight rating so to retain the 3,500 lb tongue weight rating you will need to keep the foot pad. I recommend using the Ultra-Fab...
Mr. Cover named his invention as a tribute to another inspiration, the Tom Swift science fiction novels he read as a child, one of which was “Tom Swift and His Electric Rifle.” He created an acronym from “Thomas Swift Electric Rifle,” adding the “A,” he explained to The Washington Post in 1976, “because we got tired of answering the phone ‘T.S.E.R.’ ”
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Powered jack features a ball-bearing screw system that reduces noise and wear and operates more efficiently than standard screw systems. Automatic stop prevents damage to gears. Front and side LEDs Features: Electric jack with powered drive lets you lift and lower your trailer quickly and easily Low-friction ball screw minimizes resistance to reduce wear, noise and heat Ball bearings roll