I'm planning on making my trailer have a removable tongue. My current set up is an all aluminum trailer with a 3" x 3" (1/4" thick) aluminum tongue. I've purchased a 2.5" x 2.5" (1/4" thick) square aluminum tubing for the part that slides into the existing 3" x 3" trailer tongue (that will be shortened). Can I use the 2.5" x 2.5" aluminum square tubing alone as the new trailer tongue or do I need to purchase a 3" x 3" tubing to weld to the new smaller tubing to mount the coupler? Any thoughts appreciated.