I was wondering if you are just at the limit of the tongue weight of 350? I have a dirt bike that is about 290 lbs and the hitch carrier I have is about 60 lbs. I was worried about maxing out the height. How bad does the back sag?I also installed the same Curt 2" with the wiring harness CURT T-Connectors for like $65 and was easy to inatall just have to run 1 wire to the battery little pain but not bad. I carry my dirt bike with no problem.