rear rotors for a 8'' or 9'' four lug

[fast90mini]

Can someone tell me what year rotors will fit on a 8 or 9'' rear end, what year and what type of car did they come on, looking for 4 lug rotors, putting disk brakes on our car and need two rotors, thanks

[Gofast21]

1988 Thunderbird turbo coupe will use a rear disc brake.

[Headhunter]

Escort fronts.