It's not necessarilly a tranny problem. When was the last time the plugs and wires (if 3400) where changed? Is it throwing any codes? When was the last time the fuel filter was changed, injectors cleaned? Possibly EGR (again if 3400). The reason it could be vibrating after you put it in gear is because it idles lower in gear than in park or N. Also, when it "hesitates" at take off, does the motor hesitated or does the trans slip.
__________________
2003 Alero
2.2 5speed
Grey
1996 GMC Yukon 4x4
5.7 liters of gas suckin power!
33x12.5r15 Mud Terrians on 15x10 wheels
111,111,111 x 111,111,111 = 12345678987654321
|