Hey guys, I'm a newbie here but I'm quite the contributor over at mustang forums. I recently got out of my 89 mustang gt and got a 99 explorer 4d XL
it has 72k on it, and its a 1owner truck. really nice shape, ice cold a/c, interior is beautiful.

what can i expect out of this truck, as far as common problems go?
i have a 92 sport sittin in my yard, rotting to the ground as we speak.

Also, what are the speaker sizes all the way around? my 92 has 4 brand new speakersi put it a while ago, 5x8's i think. someone correct me there if i'm wrong.
will they swap from truck to truck?