speaker sizes for '98 sr5

[Kramer420]

hey, just bought my first 4 runner about 3 weeks ago, and i installed my subs my deck and my ipod sounds great! just my one problem is, i cant find (well get) a straight answer on my speaker sizes for the 4 doors >_<. Some people are telling me its 4inchers in the doors, i alos heard there 6 1/2's or even 5", and im starting to hear the factorty speakers start to die. :bash: im a mechcanic my trade so i like to do the work my self. (like ive done on all my cars) so my last resort is to bring it to a car stereo place.

thanks