I have a 1973 TA22 Celica with a 3T-GTE. I have had a look on my Id plate in the engine bay and i have a D082 diff (6.62" 4.11 ratio open center) It's got a nasty whine to it at the moment so i am looking for another standard center until i can afford a B/W or Hilux. Any suggestions on what ratio i should get or what car i can source one of these from? I have heard any ratio between about 3.3 and 3.9 would be good for a 3T-GTE, any advice?