Rattle from front end when in reverse

[98gpgt]

Seems like it's coming from the right front. If you step on the break and rev the engine, it rattles faster. Transmission chain rattling?

[Imp558]

Something loose on the accessory end of the engine.

[Nas Escobar]

I'd check the engine mounts. Might sound odd, but my old GA would rattle and shake when in reverse but not in drive. Was fine otherwise. Turned out to be the mounts.

[Galaxie500XL]

I seem to remember also that there's a sheet metal curved cover over the passenger side axle...could be the bolts are loose.