Thread: List of compatible transmissions 4T65E 2000 GP GT 3.8 N/A

If you're looking to keep your 3.29 gears, you can use
98-02 GT
98-02 9c1 Impala (cop/taxi)
98-02 3.5l Intrigue/Aurora
98-02 Venture, Silhouette, Trans Sport, Montana, Aztek, Rendezvous

Some of the years may vary, but I like to keep it within that range just cause in 97 and 03 a lot of changes were done to the 4t65 and it's not worth the hassle to make it compatible (wiring, pcm swap, etc)