Cadillac Forum - Enthusiast forums for Cadillac Owners - gearbox conversion TH350 to TH200-4R

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- Automatic Transmissions (https://www.cadillacforum.com/forum/automatic-transmissions-57/)

- - gearbox conversion TH350 to TH200-4R (https://www.cadillacforum.com/forum/automatic-transmissions-57/gearbox-conversion-th350-th200-4r-8452/)

ALPAq

03-19-2009 10:51 AM

gearbox conversion TH350 to TH200-4R

Hello everyone.
I asked about it but have not received a response. I think the appropriate place for this question.
If the TH350 gearbox fit into my engine (350cu Oldsmobile) , the gearbox TH200-R4 (or TH200) will also fit into it without making changes? And vice versa, if my gearbox TH350 will fit without modifications to the engine Oldsmobile 307cu (1985) from which is the gearbox TH200-4R?
Thanks
Regards

slowroll

03-19-2009 09:04 PM

Your 83 DeVille would have come with 200r4. Re-installing it is not a big deal. You should be able to get driveshaft from 86 Fleetwood. You will need wiring kit for TCC to operate without ecm.

ALPAq

03-20-2009 03:53 AM

Thank you
Come not fully understand about the wiring.
So the board can not simply install the engine 307 instead of 350 to my TH350 and ride? Without any changes?

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