Front air cylinders

I am in the process of a unibody drop on a 90 crx. I need to know if I can run a 3"cce air cylinder up front and not worry about breaking the shaft. I have a stock D15 motor which only puts out 70-80hp so that should be okay. I just need to know if I will run into any major problems other than needing more psi to lift it and will it handle the extra weight. Thanks.Chris