91 ltd & 83 Merc Transmission?

Hey people. Are they Tranny 4-speed auto (4th being "overdrive") from an 83 grandmarquis and a 91 LTD (both a 302 EFI engine although I think the 91 ltd
is an ohc) the same? (or not neccisarily the same.....but could you use one from the merc easily in the ltd?
Thanks in advance
Nic
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The 1990, 1991, & 1992 transmissions are interchangeable among the 5.0,58, & 4.6 engines. The 1983 transmission will interchange to 1980-1987 AOD applications.
Rob * * *

83
ltd
one
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So...... the answer is "no" unless some major modifications are done?

an
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