I did this job on a peterbuilt otr truck from canada that was converted to a dump truck. We added a hitch to haul equipment for AJAX paving company and 3/4" plate worked great.
we hauled all kinds of paving equipment. dozers, loaders, rollers, broom trucks, pavers, graders and more.
just be carefull of any harbor freight welders. you have to mod them to get decent beads. and even then the penetration sucks.
I would recommend just going to lowes or home depot and getting a good name brand arc welder.
you dont want to see your trailer rolling up next to you while you are going down the road do you???
think about that... your putting your life and the people around you lives at risk.
View attachment 434545
dont use a wire feed/mig welder for this job. they do not have the penetration you need for this job.
you want to look into a 220v AC arc welder and 60-10 or 60 -11 rods. Dont use 70-18 rods and dont use 70-24 rods even though they are easier to weld with.
wire feed welders work great on trucks when you are welding on mud flap brackets or light brackets and little stuff like that.
I am saying this because I do have experience. I am a welder. I went to school for welding at tampa bay vo tech in tampa florida for 4 years.
And I am not trying to be a smart *** about it... I just know what I am talking about. I dont want to see anyone get hurt because of a crappy harbor freight welder.