So I think the next step for me with my ride is a set of 3.73 gears from the stockers.. I do alot of highway driving so 4.10's are out of the question. I was wondering what people on here thought about doing the install myself and if anybody else has done it themselves. Usually I'm not one to do my own work on a 'vital' part of my car but I was thinking I could save some extra bucks on it. Also anybody who had it professionally installed how much did they charge you to do it? I will be around Dallas so I thought about swinging by DM and having them do it but I don't want to overpay for an easier job. Also I was told the car has a chip on it but I am not sure what brand or anything so would I need a new tune due to the change of gears? Any help with these questions would be great.