If you do this like Briggs is suggesting remember you will need to weld/bolt (weld = better) who braces from the bottom of the hitch mount to your frame - you can use the tie down bolt through if you bolt. PLUS you need to put two grade 8 bolts through the bottom of this mount and then through the rear xmember. Use grade 8 on everything.
"The difference between stupidity and genius, is that genius has its limits." - Albert Einstein