Transmission Replacement

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Transmission Replacement

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Cadillac >> Cadillac Models >> Cadillac STS >> Transmission Replacement

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Transmission Replacement - 1/2/2007 10:43:53 PM

sliksts

Posts: 2
Joined: 1/2/2007
Status: offline

I'm going to be replacing the transmission in my '94 STS. Appears that it is a 4T80E transmission. Any reason a 4T80E transmission from any other year Seville or other Cadillac which has a 4T80E will not fit and work?

Post #: 1

RE: Transmission Replacement - 1/3/2007 5:15:14 PM

FLCaddytech

Posts: 507
Joined: 6/22/2006
Status: offline

Check with the dealer or bone yard for which years and modles will interchange.
A 2005 4t80e will not work properly with a 94 sts PCM.
The biggest difference i know of is the TCC changed around 2000.
There will be other changes through the years so you need to do your homework before you make the swap.

(in reply to sliksts)

Post #: 2

RE: Transmission Replacement - 1/5/2007 9:49:16 AM

sliksts

Posts: 2
Joined: 1/2/2007
Status: offline

Thanks for the response. I have found out that the 94 STS 4T80E was a one year one year only STS tranny. Different wiring harness and various other items. Going to rebuild the one I have.

(in reply to FLCaddytech)

Post #: 3