- Buick Ownership
- Park Avenue Ultra
New to the Park Avenue scene, these cars are pretty sweet but the weak link seems to be the tranny. A 4spd auto in a ‘05 vehicle is ridiculous. Does anyone know what it’s gonna take to do this swap? With two more gears, is the case going to be physically larger? I’m sure somethings gonna have to be done with the TCU/ECU. Any ideas?