like stlwagon said...new springs and retainers are not nessecary...those depend on how aggresive the cam is....with a stage 2...you will not....but if i were you..i would go with gears anyways...lol....i have an automatic too....and i am puttin 4:10 gears in next month..
2003 Mustang GT automatic in need of Cams...
I got a '03 GT (automatic) and I'm thinking about doing some type of stage 2 cam... Am I going to have to do anything other than Valve Springs? Do I need 3.73 ring and pinion, Torque Converter Upgrade, anything like that or can it just swap the cams and springs?
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