I have an old trailer jack now that just goes up and down, no swivel back while towing. I normally just crank it all the way up and then go, however that does get to be a pain in the back side. I am thinking I should replace it with a swing up style but I am not sure if it will fit. Right behind where the jack is mounted to the trailer, the trailer branches to a wide Vee shape. Will there be room to swing it up without hitting the trailer? I have never really looked at others to see how they swing up into position. Any help? Thanks. BTW, My trailer tongue is a 2.5 inch square and boat, motor, & trailer weighs about 2400 so I believe a 1000lb jack is probably the right size?

Mount it after the Y.  Mine came from the factory mounted in that position.

Mount it after the Y.  Mine came from the factory mounted in that position.

x2 this is where most swing away are mounted unless the trailer doesn't split until under the boat.