Suspension upper mount bushes

[eyedee]

Hi,
Can anyone tell me which suspension upper mount bushes I should buy for my 92 third gen Rex?  The suspension is aftermarket stuff, but even having had it on stilts at a garage we couldnt determine who makes them!  Can I buy any bush and it will just fit or do I need to find out the suspension type?  Also, does anyone know much about pillowball upper mount bushes as I know a lot of people who recommend them.  Would they fit?  Or Apexi? - Ive heard great things about them too!  :confused:  All help be much appreciated!
cheers  :wave