The gantry from HF is rated at 1 ton so the multifuel is getting close to the limit but like I said, it didn't even flex at all. Just make sure the you have it set tall enough before you start lifting....lifted the old motor all the way up and needed another 2" to get it over the winch
One thing I did since I did the swap myself was to roll the truck back, get the motor and gantry in place, lift and the roll the truck under it. If you try moving the gantry with the motor in the air, it's not easy especially if things get to swinging.
The gantry has been very useful for many other things around the shop and for loading and unloading spare parts and tires.