T-3650 Swap In A 2000 Gt

Having trouble understanding the post. But in general the two transmissions interchange as long as the OSS speed sensor has the same number of teeth.

If the number of OSS teeth are different the speedometer will be wrong. However this can be corrected with a modified tune.

But it seems to me that there's something else going on here. The clutch need to match the flywheel. 10.5" verses 11". The only consideration that needs to be made for which transmission is being used is the number of splines on the input shafts. Match that and it should work together.

It's a direct swap just by a clutch for your 2000 if you're using the stock flywheel.