2000 Grand Prix GT 3.8L Not shifting into any gear..

To fix the one you have.. there isn't enough money. Could be a seal etc....my preference since trans building takes me too much time is to swap one in. car-part is listing a few around the 120-140K mile range for $300-$400, add on labor and fluid and it could be done in a day. Depending on how long you plan to keep the car, I'd consider suggesting a PCS and 4th hub shaft get put in before the trans goes into the car. That way you know the two most common issues are fixed.

where in ct? where can i get a decent price for a decent tranny? I check the linkage, and it does move, but the car is not moving

Car-part.com is all the junkyards that list online. It's a great place to start.

Toss me a pm if you'd like to talk about having one installed.

ok thanks, i will let you know