[RWDCelicadude]

The 3.73 gears weren't offered in a celica for the US but apparently some Australian and Japanese models used them. You can get the Cressida rear end in a 3.73 but I don't think they made them with a factory locker. I may be wrong on that though.

 

[RWDCelicadude]

No, the 80s celicas were never offered with LSD, at least not in the states. I wish they were but it's no use wishing for something that won't happen.