i doubt the jumper would be able to power it for long. i had a big warn on the bumper of my 66 and it the truck was wired with 2 batterys. it would kill both with thr truck running if i used it for too long. i now use this same winch on my 64 on a wrecker bed i made. so i have to be very careful not to use it too long since i only have one battery, even with the truck running. hr