[delzy]

I've got a line on a 97 concours with a blown motor and a "torque converter problem". The owner before the current owner says it had the TC problem for over 40k miles.

I've also got a line on a 96 SLS with a blown tranny. The current owner says that the car can probably limp up on a trailer or take a short ride around town before it's completely gone.

So my questions are:
Can the 97 tranny drop straight onto the 96 cradle?

Are there any programming issues since the concours is a 300HP and the SLS is a 270HP?

Does the AC system have to be opened to drop the cradle and RR the tranny?

Can you point me toward any resources (besides the FSM, of course) that will help?

Thanks for any tips.

 

[chazglenn3]

There will be a problem since the Concours tranny has a different final drive ratio from the SLS tranny. This will be a problem for the PCM.

 

[niffkhan123]

bro im having that problem right now.. i put a 97 sts tranny in a 94 concours..he is right the PCM is programmed for the gear ratios of a 94 concours and it is forcing my new tranny from the 97 to shift in those ratios and that is makin the shifts really jolty.. i havent found a cure yet.. no one here in toronto,canada can program or tune a 94 PCM..

 

[Ranger]

That's the problem with cross mating these transmissions. You MUST stay with the same trans VIN 9 to a VIN 9 or a Y to a Y. I think you need to find the correct trans and start over.

 

[cl1986]

Are there any programming issues since the concours is a 300HP and the SLS is a 270HP?

.

Its not really the 300hp vs 270hp, but the final drives are wrong. I believe someone said they tried doing this but wont shift past 2nd gear and throws codes, obviously the tranny is reporting one speed, wheel sensors are reporting another.

bro im having that problem right now.. i put a 97 sts tranny in a 94 concours..he is right the PCM is programmed for the gear ratios of a 94 concours and it is forcing my new tranny from the 97 to shift in those ratios and that is makin the shifts really jolty.. i havent found a cure yet.. no one here in toronto,canada can program or tune a 94 PCM..

hmmm...concourse should be same vin as an STS, final drive the same, they are both 300hp motors....

only thing i see is the 94 is obd 1 and the 97 is OBD II

oh wait, take that back.....is a 94 concourse the 295hp version??

 

[ponyboyt]

Its a concours. Should still be a (i think) 3.71 final drive.

 

[cl1986]

Its a concours. Should still be a (i think) 3.71 final drive.

concourse = STS both these are 3.71

cant take a SLS tranny and use in a concourse or STS or vice versa

SLS = 3.11?