your only "free" option is to jack it up and tighten it up..... the proper way to fix it is to take it to a shop and have hangers welded on.
not sure the year/make of your mustang, but on my 1996 theres a mounting location under the transmission with two small bolts. you could see if BBK skipped that and have a shop put in fab work to mount it properly.
not sure the year/make of your mustang, but on my 1996 theres a mounting location under the transmission with two small bolts. you could see if BBK skipped that and have a shop put in fab work to mount it properly.