My '91 3.1 struts/shocks/springs are original and very 'done'. I have a '86 TA parts car that has had replacements but probably some time ago. I can't afford new yet so can I use the TA struts and rear shocks/springs on the 3.1? I figure the front springs are not going to work but I'm not sure about the rest.

shocks and struts will work without issue since they're the same for all engines

springs will also fit without issue, but the front end may sit a bit higher since the v8 springs have to compensate for the extra weight. however, since these cars have a few years and miles on them, they may be sagging at this point