What years for Pontiac Grand Am transmissions will fit a 2000 Grand Am?

It depends if the motor is a 4 cylinder or a 6 cylinder. For that particular year of grand am they had a 3.4L V6 engine and a 2.4L TwinCam I4. If it is a TwinCam engine a transmission from 1996-2001 would work if it is a TwinCam. Otherwise I believe that if it is a 3.4L V6 it has to be from a 1999-onward grand-am. They put 3.4L engines in these until the demise of the model in 2005 and to be sure cross reference the VIN # the transmission comes out of. 1g2nf52"T"XXXXXXXXX is a Grand Am with a 2.4L engine and 1g2nf52"E"XXXXXXXXX is a Grand Am with a 3.4L V6 engine. basically "T" is 2.4L and "E" is 3.4L. Hope this helps :-) www.gmpartsdirect.com has reman trannies that are new for pretty reasonable prices.