The only B234 M46 equipped 740 I have seen had a 4.10:1 ratio rear end in a 1031 housing. That is the same ratio rear end as the AW72L equipped cars had. Very uncommon 700 series.
The car I saw was a 1991 model. It had a P/J overdrive unit on the M46. The transmission is currently on my garage floor where it waits to be installed in my son's 1995 940. 1991 was the first year for the Eaton locker, and it came in the turbo cars. I don't recall this 1991 B234 equipped car having the Eaton locker. For the 1992 model year, all 700/900 cars came with the Eaton locker.
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john
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