Auto Parts: tramission, 1991 cadillac seville, gm goodwrench

Question
can i put a 1991 seville transmission in a 1994 sedan deville cadillac

Answer
Hi Thaddeuss,

Sorry but they are not. Cadillac interchanges are usually very slim because Cadillac liked to keep on the cutting edge of technology so the parts they used in their vehicles changed almost yearly. As such, the interchanges you asked for are listed below.

1991 Cadillac Seville Transmission:
OPTION CODE F79:
DEVILLE 91 A.T., FWD; w/o coachbuilder R1P; 2.97 ratio F79
ELDORADO 91 A.T.; 2.97 ratio F79
FLEETWOOD 91 A.T., FWD; w/o coachbuilder R1P; 2.97 ratio F79
SEVILLE 91 A.T.; 2.97 ratio F79
-----NOTES------
4 spd. A.T., 4T60E, M13.
2.97 ratio F79.
30 tooth speedo wheel #8651521.
==============================================
OPTION CODE GX3:
ELDORADO 91 A.T.; 3.33 ratio GX3
SEVILLE 91 A.T.; 3.33 ratio GX3
-----NOTES------
4 spd. A.T., 4T60E, M13.
3.33 ratio GX3.
30 tooth speedo wheel #8651521.
==============================================
1994 Cadillac (Sedan) DeVille Transmission:
4.9Liter engine:
DEVILLE 94-95 A.T., FWD; 4T60E (4.9L)
-----NOTES------
4 spd. A.T., 4T60E, M13.
31 tooth speedo wheel #8686075.
===============================================
4.6Liter engine:
DEVILLE 94 A.T., FWD; 4T80E (4.6L)
ELDORADO 94 A.T.; (8-279, 4.6L), VIN "Y"
SEVILLE 94 A.T.; (8-279, 4.6L), VIN "Y"
-----NOTES------
GM goodwrench
GM AC Delco
Ident: AAN
4 speed A.T.
4T80E, MH1.
3.11 ratio.
===============================================

Thanks for the question, I hope this information was helpful to you.
Fred
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