I got a full pumpkin with a 3.5 and installed in into my auto and it does make a big difference. I have a vortech s/c and when I shift the car from 1st to 3rd it wants to go sideways. I bought the whold pumpkin for 300 dollars and installed it myself. Great mod imo

 

For those asking about install costs; let's do the math:

1. Central 20 Gears + Install kit = $528.50
2. Pumpkin swap cost (For AT's) = 2 Hrs labor = Roughly $300
3. 3.9 Final Drive install = $500

Total = $1328.50