1987 Cabriolet / front end rattle identification

greetings from Seattle ....my 1987 Cabriolet is experiencing a metal type rattling under the front end / below the engine whenever I hit bumps ....this is new, as my engine & gear box are fully rebuilt & super tight ....sounds like a shroud or shield of some sort, as per the rattle heard when I hit a bump .....before I start looking around, feeling around and/or guessing, can anyone pin point what may be loose or what I need to be checking ?? .....THANK YOU !!

 

Front engine mount loose

 

thanks, but all engine mounts / bushings / fasteners brand new ....and tight as can be / torqued to spec ....this rattle, as I said, sounds like a shield or shroud ....

 

Sounds like an exhaust silencer baffle loose perhaps

 

Driveshafts
Driveshaft heat shield (if fitted)
Exhaust heat shield - under body near gearshifter
Exhaust heat shield - on downpipe if fitted