I need a hitch on the back of my pup for a bike rack (which I already have) It is a 1 7/8" I believe. Not the 2" for sure. Can anyone recommend a "bolt on hitch and if not, a weld on hitch. I have a 2005 Palomino Mustang with the small bumper looking thing . I also have a spare tire and cover on the back. Any help would be greatly appreciated. Thank you in advance !