Well I've been holding off on changing the gears on my Impala but now with the 22's and a 3200 stall I would like for my car to feel torquey again and I'm thinking about going this route but am unsure wether I will need a new drive shaft or not. I have called two places here in the Chicago land area. One being Speed Inc and the the other one being Finish Line Performance. I have heard great things from FLP so I'm thinking about going to them, they are a littlte bit pricey but I'd rather pay for a great service. FLP told me that I will not need a new drive shaft however I have heard from some members that I will need a new drive shaft Is this a hit or miss type thing? Any luck from my Chicago Brothers with their gear install?