The fronts are 3.5" Craig single paper cones. The rears are 4"x10" coaxial Craig "Power Plays". The stock speakers in my car were not broken, but sounded really muddy. I replaced the fronts with Boston Acoustics 3.5" coaxials. I replaced the rears with 5"x7" Polk EX coaxials. These fit with very minor modifications. It actually uses the stock mounting bracket, the only requirement is that two of the mounting holes should be cut into slits, so that the bracket moves slightly upward, pivoting on the third screw. They sound great, and can handle the power that most new stereos put out. I also mounted an amp, and a 10" subwoofer in the compartment behind the driver's seat (no permanent modifications). If anyone is interested in details, please email me. The system sounds very balenced, and produces a clean, well staged performance. Good luck ------------------------------------------------------------------------ To address comments privately to the moderating team, please address to moderator@xxxx