hey up guys, im a greatful by the way for your help and advice. It's great this forum! honesty from impartial people is worth its salt.
Ok so I got my "normal" hammer and I wacked everything, chasis related. Yeah I found another hole, and here are the snaps. The main struts, long bits are sound and they make that tiny sound, which I read is good times right.
I have taken picture of area and then zoomed in to make crystal clear where the area in question is ;-)
rear
rear again
general area...
a closre look, but its only rounded (with what looks like a dougnut), not caved in properly and I did hit it alot. slightly of centre to left
and the cross member after I hit it with the hammer and played a little to brake lose stuff away
maybe a little clearer, same place (that black dot aint a hole, but hmm someting els)
so what do ya think guys? I know the area looks really rust in all pictures, but I gather thats kinda normal, maybe. its a 1991 afterall.