I finally replaced the driver side mount bracket.. One hole is threaded, while the other one is not. I assume the non-threaded hole requires a stud/locking nut. The kit provided enough locking nuts, [four, actually] but I'm not sure which stud to use. The two studs on the old mount bracket look too small to fit in the hole, but I haven't actually taken them out to see yet.

Thanks in advance..

Without you guys I'd be lost-

 

the threaded hole on the new block bracket is for a stud from a 90-93 integra or 88-91 civic/crx

the other hole will use a bolt and lock nut

the 2 studs on the old mount bracket you just leave on the bracket